Question 11 (a) State the principle of conservation of momentum. (b) A trolley X of mass 2 kg moving at 10 m s¹ hits a stationary trolley Y of mass 3 kg. After a collision, the two trolleys stick together. 10 m s¹ 2 kg i. ii. 3 kg Y Before collision After collision Calculate the momentum of trolley X before the collision. Find the common velocity of trolley X and Y after the collision. iii. If the time of impact is 0.5 s, find the average force acting on trolley X. iv. Is the collision elastic or inelastic? Show your calculation to explain your answer.
Question 11 (a) State the principle of conservation of momentum. (b) A trolley X of mass 2 kg moving at 10 m s¹ hits a stationary trolley Y of mass 3 kg. After a collision, the two trolleys stick together. 10 m s¹ 2 kg i. ii. 3 kg Y Before collision After collision Calculate the momentum of trolley X before the collision. Find the common velocity of trolley X and Y after the collision. iii. If the time of impact is 0.5 s, find the average force acting on trolley X. iv. Is the collision elastic or inelastic? Show your calculation to explain your answer.
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Transcribed Image Text:Question 11
(a) State the principle of conservation of momentum.
(b)
A trolley X of mass 2 kg moving at 10 m s¹ hits a stationary trolley Y of
mass 3 kg. After a collision, the two trolleys stick together.
10 m s¹
2 kg
X
i.
3 kg
E
Before collision
After collision
Calculate the momentum of trolley X before the collision.
ii.
Find the common velocity of trolley X and Y after the collision.
iii.
If the time of impact is 0.5 s, find the average force acting on trolley
X.
iv. Is the collision elastic or inelastic? Show your calculation to explain
your answer.
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