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QUESTION 1 First we must draw a free body diagram(FBD) and then we must find the equation of center of gravity : Center gravity is sum of fy=0 Zr + zf - W = 0 Zr + zf = W Sum of Ma=0 -zr(L) + W(lf) = 0 Lf = zr(L)/W L = lf + lr QUESTION 2 1. LADEN WEIGHT IS ACTUAL WEIGHT OF THE VEHICLE AS LOADED LADEN WEIGHT. 2. UNLADEN WEIGHT IS THE EMPTY WEIGHT OF A VEHICLE OR THE WEIGHT OF THE VEHICLE WITHOUT THE LOAD

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ERY FAHZRYL BIN MOHAMED ALI

(15DAD11F2032)

1. State the methods in determining center of gravity of cars. = 1) Draw free body diagram (FBD) 2) Equation of COG

sum of fy=0

Zr + Zf - W = 0

W = Zr + Zf

3) Solve the equation 2. Define: i) Laden weiht: The weight of a vehicle carrying some or a full payload. ii) Unladen weight: The weight of a vehicle when not loaded with goods.

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MUHAMMAD AJWAD BIN SAIBUL

(15DAD11F2001)

DAD6A

Question 1:

Center of gravity is sum Fx = 0 , Zf + Zr - w (weight) = 0 , Zf + Zr = w .

L = Lr + Lf

Question 2:

1. Laden weight is actual weight of the vehicle as loaded Laden weight. The weight of the vehicle WITH the load on.

2. Unladen weight is the empty weight of a vehicle or the weight of the vehicle WITHOUT the load.

*There are 3 Methods used to determine center of gravity

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MUHAMMAD NAQIUDDIN BIN OTHMAN 15DAD11F2049

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MUHAMMAD NAQIUDDIN BIN OTHMAN 15DAD11F2049

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Method in determining CENTER OF GRAVITY

1) draw FBD

2)equation of COG

sum of fy=0

Zr + Zf - W = 0

W = Zr + Zf

3)solve the equation

Define laden weight

= the weight of a vehicle carrying some or a full payload

Define unladen weight

= the weight of an empty of vehicle

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MOHAMAD MUKZAMIR BIN RASOL (15DAD11F2036)

QUESTION 1

First we must draw a free body diagram(FBD) and then we must find the equation of center of gravity : Center gravity is sum of fy=0

Zr + zf - W = 0

Zr + zf = W

Sum of Ma=0

-zr(L) + W(lf) = 0

Lf = zr(L)/W

L = lf + lr

QUESTION 2

i) - Laden weight is the weight of the vehicle carrying some or full payload

ii) - Unladen weight is the weight of an empty of vehicle.

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Question 1

Center of gravity is sum Fx = 0 , Zf + Zr - w (weight) = 0 , Zf + Zr = w .

L = Lr + Lf

Question 2

1. Laden weight is actual weight of the vehicle as loaded Laden weight. The weight of the vehicle WITH the load on.

2. Unladen weight is the empty weight of a vehicle or the weight of the vehicle WITHOUT the load.

*There are 3 Methods used to determine center of gravity

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Muhammad Arham Bin Rosli (15 DAD 11 F 2025)

I will try to answer the questions in order.

Question 1: State the methods in determining center of gravity of cars

Answer : The center of gravity is a point near the center of the car

- To determine the COG, we must draw a FBD.
- Use the Equation of COG to calculate the exact point of COG

Center gravity is sum of fy=0

Zr + zf - W = 0

Zr + zf = W

Sum of Ma=0

-zr(L) + W(lf) = 0

Lf = zr(L)/W

L = lf + lr

Question 2: Definition of Laden/Unladen Weight

Answer:

Unladen weight - the weight of the vehicle when it’s not carrying any passengers, goods or other items.

Laden weight - the weight

of the vehicle when it's carrying any passengers, goods or other items.

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MUHAMMAD DZULZARIQ BIN DZULKARNAIN 15DAD11F2052

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MUHAMMAD DZULZARIQ BIN DZULKARNAIN 15DAD11F2052

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Question 1..

Method of CoG

1)FBD

2) equation of CoG

CoG sum of Fy = 0

Zr + Zf - w = 0

Zr + Zf = w

Question 2

1)Laden weight

-the weight of a vehicle carrying some or a full payload.

2)Unladen weight

-the weight of an empty of vehicle.

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Muhammad Abu Dzarrin Bin Zulpakar 15DAD11F2035

QUESTION 2

i. Laden weight is the weight of a vehicle carrying some or a full payload.

ii. Unladen weight is the weight of a vehicle when not loaded with goods.

QUESTION 1

1. Draw FBD.

2. Identify the forces in the FBD.

3. Make the equation for the FBD.

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Muhammad Azmeerul bin Rosli 15DAD11F2042

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Muhammad Azmeerul bin Rosli 15DAD11F2042

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QUESTION 1

First we must draw a free body diagram(FBD) and then we must find the equation of center of gravity : Center gravity is sum of fy=0

Zr + zf - W = 0

Zr + zf = W

Sum of Ma=0

-zr(L) + W(lf) = 0

Lf = zr(L)/W

L = lf + lr

QUESTION 2

i - Laden weight is the weight of the vehicle carrying some or full payload

ii - Unladen weight is the weight of an empty of vehicle.

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Regarding your answers towards the questions, I hope there are NO copy paste from your friends' answers.

I will not accept the SAME sentences as your answer.

Try to answer by your own sentences and understanding as it can help you to build your confidence in solving any questions.

Thank you.

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Low tire rolling resistance application

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Bridgestone Ecopia Tyres Save You Fuel - Rolling Resistance Comparison Test Drive

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Ed Ordynski - Former Australian Rally Champion, takes us through a rolling resistance test drive comparing the new Ecopia PZ-X tyre with low rolling resistance tyres from 3 other well known brands. The test clearly demonstrates the superior rolling resistance of the Bridgestone Ecopia PZ-X over other fuel saving tyres.

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MOHAMAD LUQMAN B.SABIKAN

15DAD11F2015

Q1.

-the center of gravity is point near the center of the car , it is balance point of the car.

Q2

-LADEN WEIGHT IS ACTUAL WEIGHT OF THE VEHICLE AS LOADED LADEN WEIGHT.

-UNLADEN WEIGHT IS THE EMPTY WEIGHT OF A VEHICLE OR THE WEIGHT OF THE VEHICLE WITHOUT THE LOAD

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Mohd Mumhafizuddin Bin Saharudin

Question1

The center of gravity is a point near the center of the car, it is balance point of the car.Way to determine the center of gravity, we just balance the object using a string or an edge, the point at which the object is balanced is the center of gravity.

Question2

1. Laden weight is actual weight of the vehicle as loaded laden weight.

2. Unladen weight is the empty weight of a vehicle or the weight of the vehicle without the load

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anwar bin nurulashikin 15dad11f2020

answer

1. the center of gravity is point near the center of the car , it is balance point of the car.

2. - LADEN WEIGHT IS ACTUAL WEIGHT OF THE VEHICLE AS LOADED LADEN WEIGHT.

-UNLADEN WEIGHT IS THE EMPTY WEIGHT OF A VEHICLE OR THE WEIGHT OF THE VEHICLE WITHOUT THE LOAD

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Based on this video, give your comments about the changes of design for Mazda 3 car.

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New Mazda3 Hatchback: aerodynamics animation

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Clever Mazda design has ensured the 2009 Mazda3 is aerodynamic even at speed. This video shows an animation of this approach to aerodynamics at work on the all new Mazda3 European Hatchback. Visit http://www.newmazda3.com to find out more Model availability varies per country.

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Comparison of spoilers used.

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How does a spoiler effect the performance of a car? License: Creative Commons BY-NC-SA More information at http://k12videos.mit.edu/terms-conditions

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15DAD11F2028

QUESTION 1

THE CENTER OF GRAVITY IS A POINT NEAR THE CENTER OF THE CAR.

L= LF + LR. AND THEN FIND ITS WEIGHT

QUESTION 2

1. LADEN WEIGHT IS ACTUAL WEIGHT OF THE VEHICLE AS LOADED LADEN WEIGHT.

2. UNLADEN WEIGHT IS THE EMPTY WEIGHT OF A VEHICLE OR THE WEIGHT OF THE VEHICLE WITHOUT THE LOAD

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Muhammad Azmeerul bin Rosli

15DAD11F2042

Question

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question 1

center of gravity is sum Fx = 0,zf + zr = w.

L = Lr + Lf

Question 2

1. Laden weight is actual weight of the vehicle as loaded laden weight. the weight of the vehicle with the load on.

2. Unladen weight is the empty weight of a vehicle or the weight of the vehicle without the load

*There are 3 methods used to determine center of gravity

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Question 2

1. Laden weight is the weight of vehicle with load

2. Unladen weight is the weight of vehicle without load

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Question 1

Center of gravity is sum Fx = 0 , Zf + Zr - w (weight) = 0 , Zf + Zr = w .

L = Lr + Lf

Question 2

1. Laden weight is actual weight of the vehicle as loaded Laden weight. The weight of the vehicle WITH the load on.

2. Unladen weight is the empty weight of a vehicle or the weight of the vehicle WITHOUT the load.

*There are 3 Methods used to determine center of gravity

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Muhammad hafiz bin mohamad azhar 15dad11f2008

First u need to find ZF and ZR.. And then u need to find its weight.. After that we need to find L.. L is equal to lf + lr.. After that u can find center of gravity in a car

*There are 3 methods used to determine center of gravity

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Question 1

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2. Define:

- Laden weight

-Unladen weight

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your answer/comments are here

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1. State the methods in determining center of gravity of cars.

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Assalam and Hi.

This padlet is prepared for you to communicate with me directly through online about Vehicle Dynamics.