A body is thrown horizontally with a velocity of v m/s from the top of a tower of height 2h reaches the ground in ‘t’ seconds. If another body double the mass is thrown horizontally with a velocity 5v from the top of another tower of height 8h it reaches the ground in a time of
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a
2 t
b
4 t
c
6 t
d
8 t
answer is A.
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Detailed Solution
time of flight for horizontal projection. t=2hg;t1t2=h1h2=4=2
A body is thrown horizontally with a velocity of v m/s from the top of a tower of height 2h reaches the ground in ‘t’ seconds. If another body double the mass is thrown horizontally with a velocity 5v from the top of another tower of height 8h it reaches the ground in a time of