Physics (AS & A Level) · May / June 2017 · Paper 13 · Question 16

A constant force pushes a block along a horizontal frictionless surface. The block moves from rest through a fixed distance. What is the relationship between the final speed $v$ of the block and its mass $m$?

1. A$\sqrt{v} \propto \dfrac{1}{m}$
2. B$v \propto \sqrt{m}$
3. C$v \propto \dfrac{1}{\sqrt{m}}$
4. D$\sqrt{v} \propto m$

As printed in the paper