Advertisements
Advertisements
प्रश्न
A ball of mass M is moving with a speed v. What is its kinetic energy?
Advertisements
उत्तर
Kinetic energy of a ball of mass m and moving with speed v is K.E. = 1/2 Mv2
APPEARS IN
संबंधित प्रश्न
When an arrow is shot from a bow, it has kinetic energy in it. Explain briefly from where does it get its kinetic energy?
Two bodies of equal masses are moving with uniform velocities v and 2v. Find the ratio of their kinetic energies.
A cannon ball of mass 500 g is fired with a speed of 15 m s-1. Find:
- its kinetic energy.
- its momentum.
What is the kinetic energy of a body of mass 1 kg moving with a speed of 2 m/s?
Find the momentum of a body of mass 100 g having a kinetic energy of 20 J.
A body of 2 kg falls from rest. What will be its kinetic energy during the fall at the end of 2 s? (Assume g = 10 m/s2)
If an object has 0 momentum, does it have kinetic energy? Explain your answer.
What is energy of motion? Give examples.
The kinetic energy of a body of mass 4 kg and momentum 6 Ns will be
A body starts from rest and is acted on by a constant force. The ratio of kinetic energy gained by it in the first five seconds to that gained in the next five-second is:
