A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?

Related Mcqs:

Work done by variable force is determine by dividing____________________?

A. force into small interval B. displacement into small interval C. both force and displacement into small intervals D. force into small and displacement into large intervals...

A field in which the work done in a moving a body along closed path is zero is called________________?

A. electric field B. conservative field C. electromagnetic field D. gravitational field...

Which of the following types of force can do no work on the particle on which it acts ?

A. frictional force B. gravitational force C. elastic force D. centripetal force...

Geothermal energy is a _______________________ source of energy?

A. non-renewable B. stable C. renewable D. none of the above...

________________ cells converts solar energy into electrical energy?

A. rotory B. photovoltaic C. galvanic D. non of these...