Question

Two bodies A (of mass 1 kg) and (of mass 3 kg) are dropped from heights of 16 m and 25 m respectively. The ratio of the time taken by them to reach the ground is
a) 5/4
b) 12/5
c) 5/12
d) 4/5
Proper explanation needed. ​

Answer 1

Answer:

The answer is a) 5/4.

Two bodies, A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m, respectively. The ratio of the time taken by them to reach the ground is. 5/4.

Explanation:

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Answer 2

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from equation of motion we know that when a body is dropped

h= 1/2gt²

So

$\frac{ t_{1} }{ t_{1}} = \sqrt{ \frac{ h_{1} }{ 1_{2} } } = \sqrt{ \frac{16}{25} } = \frac{4}{5}$

Hence (D) is correct answer

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