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
1.6 seconds
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Answer 1

To find out how long it will take Rock 2 to fall, we can use the fact that the time it takes for an object to fall freely under the influence of gravity (assuming no air resistance) does not depend on its mass. Therefore, since Rock 1 takes 4.0 seconds to fall from the same height, Rock 2 will also take the same amount of time to fall.

The answer is:

4.0 seconds