Rock 1 Rock 2

Question

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

0.4 second
0.4 second

4.0 seconds
4.0 seconds

1.6 seconds
1.6 seconds

40 seconds
40 seconds
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Answer 1

To determine the time it will take Rock 2 to fall, we can use the information given about Rock 1. Since both rocks are dropped from the same height and in the same gravitational field, they will experience the same acceleration due to gravity. Therefore, the mass of the rocks does not affect the time it takes to fall.

Given that Rock 1 takes 4.0 seconds to fall, Rock 2 will also take the same amount of time to fall from the same height. The time it takes for an object to fall freely under gravity is independent of its mass.

Thus, the answer is:

4.0 seconds.