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

1.6 seconds
1.6 seconds

4.0 seconds
4.0 seconds

0.4 second
0.4 second

40 seconds
40 seconds

Answer 1

To determine the time it takes for Rock 2 to fall, we can use the principles of free fall under gravity. The time it takes for an object to fall can be influenced by its mass, but in a vacuum (or ideally in this scenario), all objects fall at the same rate regardless of their mass.

Given that Rock 1 takes 4.0 seconds to fall, and both rocks are dropped from the same height (78.4 m), Rock 2 will also take the same time to fall under the same conditions.

Thus, the time for Rock 2 to fall is:

4.0 seconds.

So the correct response is: 4.0 seconds.