Question

A stuntman plans to run along a ro
horizontally off it to land on the roof
The roof of the next building is 4.9
the first one and 6.2 metres a
should be his minimum roof tops
the can successfully make the jump 2
(1) 3.1
(2) 4.0
(4) 6.2
(3) 4.9​

Answer 1

Vo = 4.5 m/s, horizontally.

0.5g*t^2 = 4.8 m.

4.9*t^2 = 4.8,

t = 0.99 s. = Fall time.

Range = Vo * t = 4.5 * 0.99 = 4.45 m.

Required range = 6.2 m. No, he will not make the jump!

Answer 2

Answer - 6.2 m/s

Explanation - The horizontal projectile velocity = vcos(x)