A particle moves in a straight line so that its displacement from the origin at time t t\,t seconds is r=3t2−5tr = 3t^2 - 5tr=3t2−5t metres.
Find the velocity of the particle when t=2t = 2t=2.
Circle your answer.
222 m s−1^{-1}−1
666 m s−1^{-1}−1
777 m s−1^{-1}−1
121212 m s−1^{-1}−1
265 exam-style questions on AQA A Level Maths 3.2 Q: Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Constant acceleration formulae, 3.2.4 Calculus in kinematics (A-level only), and 3.2.5 Motion under gravity and projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.