A rescue flare is launched from the deck of a ship over horizontal sea level with an initial velocity v v\,v at an angle of 30∘ 30^\circ\,30∘ to the horizontal. The maximum vertical height reached by this flare is HHH.
A second flare is launched with an initial velocity of 1.5v 1.5v\,1.5v at an angle of 45∘ 45^\circ\,45∘ to the horizontal. What is the maximum vertical height reached by the second flare? Assume air resistance is negligible.
2.25H2.25 H2.25H
3.00H3.00 H3.00H
4.50H4.50 H4.50H
6.00H6.00 H6.00H
84 exam-style questions on AQA A Level Physics Force, energy and momentum, covering Scalars and vectors, Moments, Motion along a straight line, Projectile motion, Newton's laws of motion, Momentum, Work, energy and power, and Conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.