(i)[3]
Calculate the string tension.
(ii)[2]
Find the magnitude of the force exerted by the surface on $P$.
Mathematics 9709 · AS & A Level · Probability
Probability — practice question
A particle $P$ with mass $0.4\,\text{kg}$ is connected to a fixed point $A$ by a light inextensible string of length $0.5\,\text{m}$. The point $A$ is $0.3\,\text{m}$ above a smooth horizontal surface. The particle $P$ moves round a horizontal circle on the surface at constant angular speed $5\,\text{rad s}^{-1}$.