3E1(HBL) - Qn 1(b)(i) by Lay Keok Hsu https://padlet.com/hsu_lay_keok1/PLC2017Phy Post your answers with the title as your name en-us 2017-02-09 08:11:23 UTC 2017-03-28 02:00:59 UTC hello@padlet.com Mrs Hsu hsu_lay_keok1 https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/156932755 Qn: Explain how the graph shows that this shuttlecock reaches terminal velocity.
 
(Please post your answer for Qn 1(b)(i) on this wall.)
]]> 2017-03-01 06:54:46 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/156932755 charmaine https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/159483447 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]]> 2017-03-12 10:54:27 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/159483447 Lu Yang https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/159574091 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.]]> 2017-03-13 06:46:25 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/159574091 Nicholas https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160132534 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.]]> 2017-03-15 00:14:14 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160132534 Shu Ting https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160135793 the gradient of the graph becomes constant/the graph shows a straight line after 0.8s.

]]> 2017-03-15 00:49:06 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160135793 Stacy monkeyonthetree https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160691274 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.  ]]> 2017-03-17 02:05:18 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160691274 Vicky https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160733302 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


]]> 2017-03-17 09:33:46 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160733302 Yong Sheng https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160771045 the gradient of the graph is constant from t=1s to t=2s hence the shuttlecock reaches terminal velocity

]]> 2017-03-17 12:36:53 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160771045 Caelyn https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160910073 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.]]> 2017-03-18 04:35:56 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160910073 cheryl https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160964645 At 0.8s , the shuttlecock reaches terminal velocity as the gradient of the graph becomes constant . ]]> 2017-03-19 03:50:45 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160964645 Teo Xin Yi https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160966755 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.]]> 2017-03-19 05:00:53 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160966755 ruyu https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160993023 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.]]> 2017-03-19 14:17:29 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/160993023 Devin https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161055701 ANS: At 1.5 seconds onwards, the gradient of the line is constant therefore constant velocity so terminal velocity is reached.]]> 2017-03-20 02:38:50 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161055701 Ashlyne ashlyne2002 https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161129501 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 ]]> 2017-03-20 11:46:58 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161129501 Chenye https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161135321 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]]> 2017-03-20 12:10:01 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161135321 Yang Jiayi https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161157196 The gradient of the graph from t=1.4s to t=2s which shows the shuttlecock is moving in constant velocity.]]> 2017-03-20 13:14:42 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161157196 Jiaxi https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161164758 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.]]> 2017-03-20 13:32:54 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161164758 Jiaxi https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161168203 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.]]> 2017-03-20 13:40:46 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161168203 wanwen https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161184735 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]]> 2017-03-20 14:14:27 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161184735 Yang Wanshan https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161199882 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]]> 2017-03-20 14:47:28 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161199882 Clement https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161448791 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]]> 2017-03-21 11:38:42 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161448791 Ru Huei https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161467992 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.]]> 2017-03-21 12:45:19 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161467992 Alix yeozongweiquentin https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161505530 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.]]> 2017-03-21 14:08:49 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161505530 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 https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161540501

]]> 2017-03-21 15:21:05 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/161540501 From t=1 to t=2, the gradient is constant, and at maximum uniform velocity. https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/162316181 -Daniel]]> 2017-03-24 04:43:53 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/162316181 wayne https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/162426371 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.]]> 2017-03-24 14:28:25 UTC https://padlet.com/hsu_lay_keok1/PLC2017Phy/wish/162426371