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प्रश्न
Give two examples to verify that a force tends to change the static condition of a body.
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उत्तर
Force can change the static condition of a body.
- A rest rubber ball begins to move when a force applied to it.
- The player applies a force on the stationary football while taking a penalty kick in a football match. The force applied by the player makes the football move towards the goal.
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संबंधित प्रश्न
The separation between two masses is reduced to half. How is the magnitude of the gravitational force between them affected?
State the effects of a force applied on a non-rigid and a rigid body. How does the effect of the force differ in the two cases?
How is force related to the momentum of a body?
Prove the force = mass x acceleration. State the condition when it holds.
A cricket ball of mass 100 g strikes the hand of a player with a velocity of 20 ms-1 and is brought to rest in 0.01 s calculate
1) the force applied by the hand of the player.
2) the acceleration of the ball
A force od 10 kgf is applied on a body of mass 100 g initially at rest for 0.1 s calculate:
a) the momentum acquired by the body
b) the distance travelled by the body in 0.1s. Take g = 10 N kg-1
Define 1 Dyne.
Give two examples each of contact and non-contact forces.
Give the properties of force.
Write true and false.
If mass increases, force decreases.
