Momentum
Trending Questions
If the momentum of a body increases by 50% its kinetic energy increases by ?
The S.I. unit of momentum is ___.
- same as the initial momentum
- twice the initial momentum
- four times the initial momentum
- eight times the initial momentum
A body of mass 5 kg is moving with a velocity of 10 m s-1. The ratio of its initial kinetic energy and final kinetic energy, if the mass of the body is doubled and its velocity is halved will be
1:1
1:2
2:3
2:1
What happens to the kinetic energy when the mass of the body is doubled but the velocity is reduced to half?
K.E halves
K.E. reduces by 100%
K.E. increases by 25%
There is no change in KE
Two bodies A and B of masses m and M (M>>m) have same kinetic energy.Which body will have more momentum?
A light mass and a heavy mass have equal momentum.Which will have more kinetic energy?
Can a body have energy without having momentum
- Energy decreases
- Momentum and energy remain unchanged
- Momentum increases
- Energy increases
22. A body of mass 50 kg has a momentum of 3000 kg . Calculate : [2010]
(a) the kinetic energy of the body.
A body of mass 60kg is moving with a speed of 50 m/s .find its kinetic energy.
- 4:1
- 1:4
- 1:2
- 2:1
Captains of two cricket team decide to go for a stump shootout . The umpire pulls out the off and the leg stump and the middle stump is left standing. Both captains are asked to stand at the other end of the wicker and shoot a bullet at the top of the stump. The one who knocks over the stump wins . One captain shoots with a real bullet and the other shoots with a rubber bullet . If the mass and speed of both bullets are same which captain has a better chance of knocking the stump over ?
Statement 1: Seat belts are necessary due to inertia of motion of our body.
Statement 2: While applying brakes, the car slows down, but the upper part of our body remains in same state of motion.
- Statement 1 is wrong
- Statement 1 and 2 are correct, but the statements are not related to each other
- Statement 1 and 2 are correct, and statement 2 is the correct explanation for statement 1
- Statement 2 is wrong
- less than that of the bullet
- equal to that of the bullet
- more than that of the bullet
- zero
- A
- B
- C
- D
m: Mass
v: Velocity
- m+v
- m×v
- m−v
- mv
Define momentum.
- Ball D: velocity = 2 m/s
- Ball B: velocity = 5 m/s
- Ball C: velocity = 14 cm/s
- Ball A: velocity = 2.5 m/s
The momentum of an object depends on its:
- mass and velocity
- mass alone
- velocity alone
- distance
- Ball B: velocity = 5 m/s
- Ball A: velocity = 2.5 m/s
- Ball C: velocity = 14 cm/s
- Ball D: velocity = 2 m/s
- True
- False
- Newton’s first law of motion
- Newton’s third law of motion
- Newton’s second law of motion
- Law of conservation of momentum
A tennis ball and a football have the same momentum. Which one will have more kinetic energy ?