Use the table of data for two falling rocks to answer the question.

Question

Rock 1 Rock 2
Mass (kg) 2.5 25
Height of Fall (m) 78.4 78.4
Time to Fall (s) 4.0 ?
Based on this data, how many seconds will it take rock 2 to fall?

(1 point)
Responses

40 seconds
40 seconds

0.4 second
0.4 second

4.0 seconds
4.0 seconds

1.6 seconds

Answer 1

To determine the time it takes for Rock 2 to fall, we can use the fact that the motion of falling objects (in a vacuum) is independent of their masses. Therefore, if Rock 1 takes 4.0 seconds to fall from the same height, Rock 2 will also take the same time to fall since they are falling from the same height (78.4 m).

So, the time it will take for Rock 2 to fall is also 4.0 seconds.

The correct response is: 4.0 seconds