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
91 exam-style questions on OCR (MEI) A Level Maths 3.3 Projectiles (A-level only), covering 3.3.1 Model motion under gravity using vectors (A-level only), 3.3.2 Position, velocity, range and maximum height (A-level only), 3.3.3 Find the initial velocity of a projectile (A-level only), 3.3.4 Equation of the trajectory (A-level only), and 3.3.5 Solve simple projectile problems (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.