Question

If a constant force acts on a body initially kept at rest the distance moved by the body in time T is proportional to

(A) t (B) t² (C) t³

Please explain why t² i answer.

Answer 1

Here Force produces accelaration.
And the body intially at rest.

so we have the equation

S = ut+1/2 at^2
here u =0
so s = 1/2 at^2
so S is proportional to t^2.