A body is projected vertically up from the ground. Taking air resistance into account, if t1 is the time taken in going up while t2 in coming down to starting point, then:
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a
t1>t2
b
t1=t2
c
t1
d
t1 can be greater or smaller depending upon the initial velocity of the body
answer is C.
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Detailed Solution
During ascent gravity and resistance are in same direction, while they are in opposite direction during descent