Momentum
Trending Questions
If the momentum of an object is increased by 10% then its kinetic energy will increase by?
What happens to kinetic energy when momentum is doubled?
A bullet of mass , travelling with a speed of , strikes a fixed wooden target. One half of its kinetic energy is converted into heat in the bullet while the other half is converted into heat in the wood. The rise of temperature of the bullet if the specific heat of its material is () close to:
A bomb of mass explodes into two parts. One part of mass moves with velocity , then the kinetic energy of the other part is
When a bullet is fired at a target, its velocity decreases by half after penetrating into it. The additional thickness it will penetrate before coming to rest is
- Kinetic energy changes by MV24
- momentum does not change.
- Momentum changes by 2MV.
- Kinetic energy changes by MV2
A particle is moving in a horizontal circle with a constant speed. Which of the following remains constant?
Kinetic energy of the body
Momentum of the body
Radial acceleration
Displacement of the body from the center of the circle
A bomb is and divides into two parts whose ratio of masses is . If the kinetic energy of a smaller part is , then the momentum of a bigger part in will be
Data is incomplete
- Only with speed 19.6 m/s
- At least 0.8 m/s
- Any speed less than 19.6 m/s
- More than 19.6 m/s
- √3GM2R
- √3GM4R
- √3GM8R
- √3GM16R
A body of mass is moving in a medium and experiences a frictional force . Its initial speed is . If, after time , its energy is , the value of will be:
- 32(a+b2a+b)L
- 34(2a+b3a+b)L
- 43(a+b2a+3b)L
- 32(2a+b3a+b)L
- The momentum of the lead ball is greater than that of the tennis ball.
- The lead ball suffers a greater change in momentum compared with the tennis ball.
- The tennis ball suffers a greater change in momentum as compared with the lead ball.
- Both suffer an equal change in momentum.
- m2Lm1+m2
- m1Lm1+m2+m2v0tm1+m2
- m2Lm1+m2+m1v0tm1+m2
- m2Lm1+m2+m2v0tm1+m2