Projectiles

Two objects, $P\,$ and $Q$ , are dropped from rest from different heights above level ground.

Object $P\,$ is released from a height of $H\,$ metres.

Object $Q\,$ is released $T\,$ seconds after $P\,$ from a height of $cH\,$ metres, where $0 < c < 1$ .

Both objects hit the ground exactly 4 seconds after $P\,$ was released.

Assuming air resistance is negligible, prove that

\sqrt{c})

Fully justify your answer.

[5]

Two objects, $P\,$ and $Q$ , are dropped from rest from different heights above level ground.

Object $P\,$ is released from a height of $H\,$ metres.

Object $Q\,$ is released $T\,$ seconds after $P\,$ from a height of $cH\,$ metres, where $0 < c < 1$ .

Both objects hit the ground exactly 4 seconds after $P\,$ was released.

Assuming air resistance is negligible, prove that

\sqrt{c})

Fully justify your answer.

[5]

Projectiles Questions