Physics - SHM Question with Solution | TestHub

Maximum potential energy is attained at the highest point which gets converted into kinetic energy at the lowest point. $$\begin{array}{rl}& \mathrm{h}=2-0.75=1.25\mathrm{m}\\ & \frac{1}{2}{\mathrm{mv}}^2=\mathrm{mgh}\\ & \therefore {\mathrm{v}}^2=2\mathrm{gh}=2\times 10\times 1.25=25\\ & \therefore \mathrm{v}=5\mathrm{m}/\mathrm{s}\end{array}$$