Q.
A body is initially at rest. It undergoes one dimensional motion with constant acceleration. The power delivered to it in time t is proportional to
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a
t12
b
t
c
t32
d
t2
answer is B.
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Detailed Solution
if force is constant mdvdt= k constant on intregation mv=kt v∞t power = F xv =F x kt m power ∞ t
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