Question

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

Answer 1

Time taken will not depend on mass

$t = \sqrt{ \frac{2h}{g} }$

Where h = Height and g = acceleration due to gravity

Time taken by the object to fall from a height 16 m = $\sqrt{ \frac{2 \times 16}{9.8} } =1.807$

Time taken by the object to fall from a height 25 m = $\sqrt{ \frac{2 \times 25}{9.8} } = 2.258$