Question

If force acting on a body is constant then its
kinetic energy is proportional to​

Answer 1

Answer:

half its product of mass and velocity 's square

Answer 2

Answer:t^2

Explanation:

If f is constant then a is also constant

Wkt change in k.E = work done

1/2mv^2 - 1/2mu^2= F.s --(1)

Let u = 0

As a is constant we can use the formula s= ut+1/2at^2

u=0 => s=1/2at^2--(2)

Substituting (2) on (1)

=> 1/2mv^2 = F. 1/2at^2

Here F, a, 1/2 are all constants

=>1/2mv^2 is proportional to t^2