A gardener drags a lawn-roller by applying a constant horizontal force of through a…
PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy
Problem
A gardener drags a lawn-roller by applying a constant horizontal force of 150N through a distance of 50m across level ground in 25s. Answer the following:
(i) Calculate the work done by the gardener on the roller.
(ii) Determine the average power developed by the gardener during this task.
(iii) Express the power obtained in part (ii) in kilowatts.