A particle moves along a straight line. Its velocity decreases uniformly from 18 m s-1 at t=0t=0t=0 to zero at t=6t=6t=6 s, and then to -8 m s-1 at t=10t=10t=10 s. The velocity then increases uniformly, reaching 12 m s-1 at t=Tt=Tt=T s. The displacement of the particle in the first T T\,T seconds is 48 m.
Find TTT.
Find the total distance travelled in the first T T\,T seconds.
Find the average velocity of the particle in the first T T\,T seconds.
158 exam-style questions on OCR (MEI) A Level Maths 3.2 Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Position, displacement, distance and distance travelled, 3.2.3 Velocity, speed and acceleration distinctions, 3.2.4 Draw and interpret kinematics graphs, 3.2.5 Differentiate position and velocity (A-level only), 3.2.6 Integrate acceleration and velocity (A-level only), 3.2.7 When constant acceleration formulae apply, 3.2.8 Solve 1-D kinematics problems, 3.2.9 Language of kinematics in 2 dimensions (A-level only), 3.2.10 Extend 1-D techniques to 2-D using vectors (A-level only), 3.2.11 Cartesian equation of a path (A-level only), and 3.2.12 Vectors to solve kinematics problems (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.