Answer to Question #125042 in Physics for Lesley

Question

An inclined plane of inclination (&) has a length of 15m .If a body rolls down the plane freely along the entire length with an acceleration 5ms^-2 , calculate the
(a)angle (&)
(b)height of the plane
NB:& = theta

Take g=10m/s²

Answer 1

a)

$$a=g\sin{\theta}\\5=10\sin{\theta}\\\theta=30\degree$$

b)

$$f=15\sin{30}=7.5\ m$$