A man decides to shoot a rifle whilst on a wheelchair. Explain in terms of conservation of momentum what happens to the man as the shot is fired.

Assume that initially the wheelchair is stationary. When the rifle is fired a bullet travels in the forward direction. Conservation of momentum states that the momentum before an action is the same as the momentum after an action. Therefore to conserve a total momentum of 0 the wheelchair must move backwards to conserve momentum. given the mass of the wheelchair with the man and the bullet and the velocity of the bullet, we ould calculate the velocity of the wheelchair.

MH

Related Physics GCSE answers

All answers ▸

When the current through an ohmic conductor is 2A, the potential difference across it is 6V. What is the potential difference across the same ohmic conductor when the current is increased to 3A?


A 15kg cannonball and a 1kg football are dropped to the ground from a height of 10 metres. Calculate the speed of the cannonball and of the football just before they hit the ground (you may ignore air resistance).


Explain, with reference to the Schwarzschild radius, why the sun isn’t a black hole.


What is cosmic microwave background, and where does it come from?