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प्रश्न
In the following situation identify the agent exerting the force and the object on which it acts. State the effect of the force in case.
An athlete making a high jump to clear the bar at a certain height.
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उत्तर
The body gets extra force due to the runner's running (speed). Due to this, he can lift his body to the required height. So, here, the person is forced due to his speed. Force is being applied to the person's own body, and due to this force, the person can lift his body.
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संबंधित प्रश्न
Give two examples of situations in which you push to change the state of motion of objects.
To draw water from a well we have to ______ at the rope.
Fill in the blank.
On pulling a string, its .................. increases.
Select the correct alternative.
Friction is increased if
Explain the meaning of the term force.
Fill in the blank.
Magnetic force is a ................ force.
Match the following.
| Column A | Column B |
| 1. Non-contact forces | a. perpendicular to surface |
| 2. Catapult | b. an act of push or pull |
| 3. Force | c. unit of force |
| 4. Normal force | d. action-at-a-distance forces |
| 5. Newton | e. contact force |
Solve the crossword puzzle.
Across
1. Type of force which depends upon the roughness of a surface
2. An effect of friction
3. The force of friction caused due to fluids
4. Type of friction acting between two bodies at rest
5. Type of friction which occurs when applied force overcomes static friction
6. A special body design to enable minimum drage Down
Can you identify whether it is push or pull that results in motion in the following cases?
 |
 |
 |
| Push / Pull | Push / Pull | Push / Pull |
 |
 |
 |
| Push / Pull | Push / Pull | Push / Pull |
A truck of mass M is moved under a force F. If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?
