Question

Mr. Ampere, of weight 680 N, was contacted to install wireless security cameras at a very busy shop. The ladder he used was 4.5 m long and its mass was 5 kg. It took him 18 s to reach the roof top of the shop is 4 m high. What would be Mr Ampere average power output

Answer 1

$P=W/t=mgh/t=680\cdot4/18=151\ (W)$ . Answer