Advertisements
Advertisements
प्रश्न
State whether work is done or not, by writing yes or no, in the following case:
A man pushes a wall.
पर्याय
Yes
No
MCQ
Advertisements
उत्तर
No
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Name a common device where a gear train is used
What are the two kinds of mechanical energy?
What is the work when a load of 500 kg is lifted vertically by 5 m? Given, g = 10 ms-2. Express your answer in kilo joule.
If the speed of a body is doubled, what happens to its kinetic energy?
Name the parameters that can change the K.E.
In what form is energy stored in a wrist watch?
Give an example
Electrical energy changes to heat energy.
How is horse power related to the S. I. unit of power?
Mention whether work is done or not in the following activity.
| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
What is work?
