Question

When loading a truck, a man lifts boxes of 100 N each through a height of 1.5 m. If the man lifts 4 boxes per minute, at what power is he working?

Answer 1

Answer:

work done = force* distance moved in the direction of force

Work done=100*1.5

= 150 J

The man lifts 4 boxes

now, work done= 150*4

= 600J

Power= Work done by the body / time taken

=600/60

= 10 Js·¹