A pump delivers 2.5 m 3 of water through a vertical height of 60 m. What is the work done? The density of water is 1000 kg/m 3 . A block of mass 2 kg slides at a constant speed a distance of 0.8 m...

A pump delivers 2.5 m³
of water through a vertical height of 60 m. What is the work done? The density of water is 1000 kg/m³.

A block of mass 2 kg slides at a constant speed a distance of 0.8 m down a plane which is inclined at 30° to the horizontal. Determine the work done by the weight of the block.