Advertisements
Advertisements
Question
A body does 20 J of work in 10 s. What is its power?
Numerical
Advertisements
Solution
POWER = `"work done"/"time taken" = 20/10` = 2 watt
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Derive a relationship between S.I. and C.C.S. unit of work
State the S.I. unit of energy.
What are the two kinds of mechanical energy?
Express joule in terms of erg.
What should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?
What is the work done against gravity when a body is moved horizontally along a frictionless surface?
What are the quantities on which the work done depends?
What is the work done on the earth by the gravitational force of the sun during its motion around the sun?
Give two examples of kinetic energy.
State whether work is done or not, by writing yes or no, in the following case:
A boy climbs up 20 stairs.
