Question

KE acquired by a mass m in travelling a certain distance d starting from rest under the action of a constant force is directly proportional to mass. How

Answer 1

As per work energy theorem

Work done by all forces = change in kinetic energy

so here

$W = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2$

now here we need to use work done by constant forces

so it is given by

$W = F.d$

now from above equation

$F.d = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2$

$F.d = \frac{1}{2}m(v_f^2 - v_i^2)$

since force is constant so we can say

Kinetic energy acquired by the given mass is directly proportional to the distance that is travels under the action of constant force

Answer 2

Answer:

since kinetic energy in independent of mass