Advertisements
Advertisements
प्रश्न
A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to
विकल्प
exert larger force on the ball
reduce the force exerted by the ball on hands
increase the rate of change of momentum
decrease the rate of change of momentum
Advertisements
उत्तर
decrease the rate of change of momentum
Explanation:
The goalkeeper pulls his hands backwards after holding the ball to decrease the rate of change of momentum by increasing the time. By doing this, less force is exerted on his hands (v Force is directly proportional to the rate of change of momentum).
APPEARS IN
संबंधित प्रश्न
To move a loaded trolley we have to ______ it.
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gap in the following statement using the following terms.
While the arrow moves towards its target, the forces acting on it are due to ______ and that due to ______ of air.
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.
Taking out paste from a toothpaste tube.
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.
A load suspended from a spring while its other end is on a hook fixed to a wall.
Fill in the blank.
On pulling a string, its .................. increases.
Select the correct alternative.
A body falls downwards because of
Name the term used for the push or pull?
Give a reason for the following.
Brake handles of motorcycles are generally covered with a toweled cloth?
Answer the following in detail.
Differentiate between contract and non-contract force. Support your answer with suitable examples.
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 |
