- #1
Maka42
- 8
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A trolley is moving at a constant speed down a track, with no net force acting upon it. A heavy load is dropped vertically on top of the moving trolley. What happens to the trolley's speed?
a) It stays the same,
b) It decreases,
c) It becomes zero,
d) It is impossible to say,
e) It increases (x)
I thought that it would increase as when you increase the mass the component of weight acting to pull the trolley down the slope would increase and so it would begin to accelerate, unfortunatley the computer told me I was wrong. The question doesn't really say if there is still no net force after the mass was added.
I only have one try left on this question and I can't find any relevant information anywhere!
Any help would be greatly appreciated! :)
a) It stays the same,
b) It decreases,
c) It becomes zero,
d) It is impossible to say,
e) It increases (x)
I thought that it would increase as when you increase the mass the component of weight acting to pull the trolley down the slope would increase and so it would begin to accelerate, unfortunatley the computer told me I was wrong. The question doesn't really say if there is still no net force after the mass was added.
I only have one try left on this question and I can't find any relevant information anywhere!
Any help would be greatly appreciated! :)