Questions
A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time ‘t’ is proportional to
a
t1/2
b
t3/4
c
t3/2
d
t1/4
detailed solution
Correct option is C
P=Fv=mav=mdvdtv⇒Pmdt=vdv⇒Pm×t=v22⇒v=2Pm1/2(t)1/2 now s=∫vdt=∫2Pm1/2t1/2dt∴s=2Pm1/22t3/23⇒s∝t3/2Talk to our academic expert!
Similar Questions
If force F is applied on a body and it moves with the velocity V, the power will be :
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