# data[].attributes.body
from t=0s to t=1.45s,the speed is not constant and the acceleration is increasing.but fromt=1.4s to t=2s,the shuttlecock is moving at a constant velocity and the acceleration is 0.

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From t=1 to t=2, the gradient is constant, and at maximum uniform velocity.

# data[].attributes.subject
From t=1 to t=2, the gradient is constant, and at maximum uniform velocity.

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-Daniel

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Jiaen                                                       From 0.8s onwards,the gradient of the graph is constant so it shows that there is no acceleration so it reached terminal velocity

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Jiaen                                                       From 0.8s onwards,the gradient of the graph is constant so it shows that there is no acceleration so it reached terminal velocity

# data[].attributes.body
Terminal velocity is the resultant force acting on an object is zero thus making the object travel at a constant maximum speed. The gradient of this graph from 0.8 second to 2 second is constant thus the speed is constant so it reaches terminal velocity.

# data[].attributes.body
The graph shows the gradient of the distance time graph is constant after t=0.8s. This shows that the speed of the light shuttlecock is increasing at a constant rate, reaching terminal velocity.

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When a object reaches terminal velocity, the speed or decreasing when in a free fall, the graph shows that a t=1.2 to t=2 the distance divided by time which is which is speed, v=d/t, is constant showing that the shuttlecock is in terminal velocity

# data[].attributes.body
The graph shows that from 0.8 s to 2 s, the shuttlecock has constant gradient,so constant velocity ,as the graph shows a straight line .this shows that the shuttlecock reaches terminal velocity.
gradient=9.18-3.68
=6.13 m/s

# data[].attributes.body
The gradient of the graph remains constant after   0.8 s show  that the shuttlecock  reaches terminal velocity .And its terminal velocity is (v-u)/t
which is (9.81-3.68)/1=6.13 m/s

# data[].attributes.body
From t=1.4s to t=2s, the gradient of the graph is constant, which means that the shuttlecock travels at constant velocity. Therefore, it reaches its terminal velocity.

# data[].attributes.body
From t＝0s to t=1.4s, the shuttlecock accelerates as the graph shows a curve. From t=1.4s to t=2s, it travels at a constant maximum speed as the graph shows a straight line. Therefore, it reaches its terminal velocity.

# data[].attributes.body
The gradient of the graph from t=1.4s to t=2s which shows the shuttlecock is moving in constant velocity.

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From 0s to 0.8s,the gradient shows there is a increasing velocity but starting from 0.8s,the gradient of the line become constant which shows there is no acceleration .Thus reachehing terminal velocity of 6.2m/s

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The graph of the gradient is constant increase thus showing that it has reached terminal velocity and that it's forces have balanced each other

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ANS: At 1.5 seconds onwards, the gradient of the line is constant therefore constant velocity so terminal velocity is reached.

# data[].attributes.body
the gradient of the graph becomes constant after 0.80 s and it shows that the velocity is increasing at a constant rate . Thus it has reached its terminal velocity of 6.2 m/s.

# data[].attributes.body
The gradient of the displacement time graph shows its velocity. The gradient of the graph become constant after 0.8s (velocity is 6.2m/s) means that there is a constant velocity. Terminal velocity is where the velocity become constant and has 0 acceleration. It is the maximum uniform velocity.

# data[].attributes.body
At 0.8s , the shuttlecock reaches terminal velocity as the gradient of the graph becomes constant .

# data[].attributes.body
The gradient of the distance time graph represents the speed and is constant from t=0.8s, telling us that it had reached terminal velocity as it did not accelerate.

# data[].attributes.body
the gradient of the graph is constant from t=1s to t=2s hence the shuttlecock reaches terminal velocity

# data[].attributes.body
The shuttlecock has reached terminal velocity as its velocity has a constant increase of 4.8-3.6=1.2m/0.2s. This also means that the acceleration is 0m/s^2. The gradient becomes constant after 0.8s. This also shows that it has reached terminal velocity

# data[].attributes.body
The gradient of the graph is constant. Since the velocity of the shuttlecock can be given by the gradient, the velocity of the shuttlecock is constant. T and is 6.2 m/s . As terminal velocity means the uniform and maximum velocity of the shuttlecock,   it can be seen on the graph that from t=1 s to t=2 s, the velocity is uniform and at its highest.

# data[].attributes.body
the gradient of the graph becomes constant/the graph shows a straight line after 0.8s.

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The shuttlecock reaches terminal velocity because the gradient of the distance time graph is constant and thus shows that the distance travelled by the shuttlecock reaches a constant and uniform speed or terminal velocity.

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The gradient of this distance-time graph remained constant after t=1.6 s, this suggests that the distance travelled per 0.20 s is the same from 1.6 s thus the shuttlecock reaches a uniform speed---terminal velocity.

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ans:terminal velocity also means maximum velocity taking the last two points on the graph and finding the speed using final distance- initial distance / time, you would get 1.3/0.2 for both which would mean 0 acceleration

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Qn: Explain how the graph shows that this shuttlecock reaches terminal velocity.

(Please post your answer for Qn 1(b)(i) on this wall.)