The displacement of a particle from a fixed origin after t t\,t seconds is x=t2(t+k)x=t^2(t+k)x=t2(t+k) metres, where k k\,k is a constant. The particle is instantaneously at rest when t=4t=4t=4.
Find the acceleration of the particle when t=10t=10t=10.
61 exam-style questions on CCEA A Level Maths 4.1.1 Kinematics (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.