Advertisements
Advertisements
प्रश्न
Can work done be zero even if force acts on the body?
एक पंक्ति में उत्तर
Advertisements
उत्तर
Yes, for e.g. if you push a wall, you apply force on it but no work is done since the displacement is zero.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
State the S.I. unit of energy.
Is work done a scalar or a vector physical quantity?
What is the ratio of SI units to CGS units of 'work'?
No work is done by a man moving on a horizontal road while carrying a box on his head. Explain.
A weight lifted a load of 200 kgf to a height of 2.5 m in 5 s. calculate: (i) the work done, and (ii) the power developed by him. Take g= 10 N kg-1.
Name the type of energy possessed by a moving bullet.
What type of energy is possessed by a flowing water?
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
Fill in the boxe to show the corresponding energy transformation.

State the energy changes which take place when A stone dropped from the top of a cliff reaches the ground after some time.
