A ball is projected from horizontal ground with speed 20 m s−1^{-1}−1 at an angle of 30° 30°\,30° above the horizontal. The ball is modelled as a particle and air resistance is modelled as negligible.
State the initial vertical component of the velocity of the ball.
Tick one box.
10 m s−1^{-1}−1
17.3 m s−1^{-1}−1
20 m s−1^{-1}−1
40 m s−1^{-1}−1
260 exam-style questions on OCR A Level Maths 3.2 Kinematics, covering 3.2.1 Language of kinematics, 3.2.2 Graphs in kinematics, 3.2.3 Displacement-time and velocity-time graphs, 3.2.4 Constant acceleration formulae, 3.2.5 Constant acceleration in two dimensions (A-level only), 3.2.6 Non-uniform acceleration in one dimension (A-level only), 3.2.7 Non-uniform acceleration in two dimensions (A-level only), 3.2.8 Motion under gravity using vectors (A-level only), and 3.2.9 Projectiles (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.