Use the table of data for two falling rocks to answer the 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
1.6 seconds
1.6 seconds
0.4 second
0.4 second
4.0 seconds
1 answer
Based on proportional reasoning, if Rock 1 with a mass of 2.5 kg took 4.0 seconds to fall, then Rock 2 with a mass of 25 kg would take 1.6 seconds to fall. Therefore, the answer is 1.6 seconds.
2 answers