Shown below are eight rocks that have been thrown straight up into the air. The

Question

Shown below are eight rocks that have been thrown straight up into the air. The rocks all have the same
shape, but they have different masses. The rocks are all thrown straight up, but at different speeds. The
masses of the rocks and their speeds when released are given in the figures. (We assume for this situation
that the effect of air resistance can be ignored.) All start from the same height.
Rank these rocks from greatest to least on the basis of the net force on the rocks after being thrown.

Shown below are eight rocks that have been thrown straight up into the air. The rocks all have the same shape, but they have different masses. The rocks are all thrown straight up, but at different speeds. The masses of the rocks and their speeds when released are given in the figures. (We assume for this situation that the effect of air resistance can be ignored.) All start from the same height. Rank these rocks from greatest to least on the basis of the net force on the rocks after being thrown.

Explanation / Answer

1. C

2. E

3. H

4. B

5. D

6. G

7. F

8. A

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