Advertisements
Advertisements
Question
Work done by this force at any instant is ______.
Advertisements
Solution
Work done by this force at any instant is zero.
APPEARS IN
RELATED QUESTIONS
A coolie does no work against the force of gravity while carrying a luggage on a road.
Fill in the blank with suitable word :
Work is measured as a product of __________ and __________
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
The work done on an object does not depend on ______.
What is meant by a translational motion? Give one example.
(a) Define power and name its unit.
(b) A girl weighting 50 kg climbs up 60 steps each of 20 cm height in 5 minutes. Calculate the power developed.
State the energy changes which take place when An electric bulb glows when it is connected to a source of electric current.
A water pump raises 50 kg of water through a height of 25 m in 5s. Calculate the power supplied by the pump (Take: g = 10 N kg−1).
