(i)[3]
Determine the work done by the crane.
(ii)[2]
Since the block is raised in $2\,\text{s}$, determine the power of the crane.
Mathematics 9709 · AS & A Level · Energy, work and power
Energy, work and power — practice question
A crane lifts a block with mass $50\,\text{kg}$ straight upward at constant speed through a vertical distance of $3.5\,\text{m}$. A steady resistive force of $25\,\text{N}$ acts against the motion.