The `K.E.` acquired by a mass `m` in travelling a certain distance `d`, starting from rest, under the action of a constant force is directly propotional to

Options

A. `m`
B. `sqrt(m)`
C. `(1)/(sqrt(m))`
D. none of the above

Explanation

`K.E.=(1)/(2)m upsilon^(2)=(1)/(2)m(u^(2)+2 as)`
`K.E.=(1)/(2)(0+2(F)/(m)xxd)=Fxxd`
Clearly K.E. does not depend upon mass `m`.
Choice (d) is correct