What is a reasonable estimate of the person's kinetic energy at the instant their feet leave the ground?
3 J3\text{ J}3 J
30 J30\text{ J}30 J
300 J300\text{ J}300 J
3000 J3000\text{ J}3000 J
84 exam-style questions on AQA A Level Physics Force, energy and momentum, covering Scalars and vectors, Moments, Motion along a straight line, Projectile motion, Newton's laws of motion, Momentum, Work, energy and power, and Conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.