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A body is move along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to a) t 1/2 b) t 3/4 c) t 3/2 d) t 2

A body is move along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to
a) t1/2
b) t3/4
c) t3/2
d) t2

Grade:12th pass

1 Answers

bharat bajaj IIT Delhi
askIITians Faculty 122 Points
9 years ago
P = F.v = constant
ma.v = k
Mv dv/dx. v=k
x is proportional to v^2
dx/dt = k(x)^0.5
So x is proportional to t^2

D) is the answer

Thanks
Bharat Bajaj
Askiitians faculty

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