Physics · May / June 2016 · Paper 11 · Question 11

A child slides down a slide. The weight of the child is 250 N. The height of the slide is 7.0 m. The work done against friction as the child travels down the slide is 1300 J. What is the change in gravitational potential energy and what is the final kinetic energy of the child?

1. Achange in gravitational potential energy: 1750; final kinetic energy: 450
2. Bchange in gravitational potential energy: 1750; final kinetic energy: 1750
3. Cchange in gravitational potential energy: 17 500; final kinetic energy: 16 200
4. Dchange in gravitational potential energy: 17 500; final kinetic energy: 17 500

As printed in the paper