A cart rolls down a frictionless runway of constant incline. The mass of the cart is halved and it is released from the same position on the runway.
Which statement is correct?
The accelerating force is halved.
The accelerating force is unchanged.
The acceleration is halved.
The acceleration is doubled.
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.