Question

A particle of mass m moves with a variable velocity v,
which changes with distance covered x along a straight
line as v=krootx, where k is a positive constant. The work
done by all the forces acting on the particle, during the
first t seconds is
(a) mk^4/t^2
(b) mk^4t^2/4
(c)mk^4t^2/8
(d)mk^4t^2/16
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Answer 1

i hope this will help you

Answer 2

Answer:

d)mk^4t^2/16 is correct answer