Brain teaser 6
Classical Mechanics
Level
1
Two bodies A (of mass 1kg) and B (of mass 3kg), are dropped from heights of 16 meter and 25 meter respectively. The ratio of the time taken by them to reach the ground is:-
5/12
12/5
4/5
5/4
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1 solution
S= ut + 1/2at^2 h=1/2gt^2 Case 1 h=16 m t= 4/Root 5 Case 2 h=25 m t=Root 5 Thus, dividing, 4/5