Past exam of the physics course of the year 1 of the natural sciences course of the University of Cambridge / 2024 / Paper 1 / Section B / 6 / f / Solution

Immediately after the parcel leaves, the spring still stores $\frac{1}{2}k{x}^2$, but only the $m_s=0.300\mathrm{kg}$ sledge is launched. Choose gravitational potential zero at the ramp base. Its initial position is $-x$, so conservation of energy to the apex givesThereforeabove the ramp base. Its upward travel from the compressed position is $H_s+x=2.56882\mathrm{m}$, a different distance from the height above the base.