(i)[5]
Calculate the speed of the particle at the point where its acceleration is zero.
(ii)[3]
Show that the particle travels $1.2\,\text{m}$ while it is moving upwards with constant deceleration.
Mathematics 9709 · AS & A Level · Probability
Probability — practice question
One end of a light elastic string with natural length $0.8\,\text{m}$ and modulus of elasticity $24\,\text{N}$ is fixed at point $O$. Its other end is connected to a particle $P$ of mass $0.3\,\text{kg}$. $P$ is projected vertically upwards with speed $4\,\text{m s}^{-1}$ from a point $1.2\,\text{m}$ vertically below $O$.