Two objects, P P\,P and QQQ, are dropped from rest from different heights above level ground.
Object P P\,P is released from a height of H H\,H metres.
Object Q Q\,Q is released T T\,T seconds after P P\,P from a height of cH cH\,cH metres, where 0<c<10 < c < 10<c<1.
Both objects hit the ground exactly 4 seconds after P P\,P was released.
Assuming air resistance is negligible, prove that
T=4(1−c) T = 4(1 - \sqrt{c}) T=4(1−c)Fully justify your answer.
230 exam-style questions on Edexcel A Level Maths Projectiles, covering 6.1 Horizontal Projection, 6.2 Horizontal and Vertical Components, 6.3 Projection at Any Angle, and 6.4 Projectile Motion Formulae. Each one has a worked solution and a mark scheme showing where the marks go.