| Ravi set up an experiment as shown in the given diagram. The diagram shows five identical balls being suspended on a rod by strings of different lengths. Ravi then cut all five strings at the same time and the balls were allowed to fall freely to the ground. |
| Which of these statements holds true for this experiment? |
A) Ball b had the greatest impact on the ground.
B) Ball a had more potential energy than ball b at the start.
C) Ball d had the highest potential energy at the start.
D) Ball a and e had different amounts of potential energy at the start due to their different positions along the rod.
Correct Answer: A
Solution :
The potential energy increases with increase in the height from which the ball is suspended. Ball b has the maximum potential energy being at maximum height as compared to other balls, therefore on falling it would have the greatest impact
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