Advertisements
Advertisements
Question
Give reasons for the following A horse and a dog are running with the same speed. Which one of them has more kinetic energy than the other.
Advertisements
Solution
A horse has more mass than a dog. As both are running with the same speed.
M1 of the horse is greater than M2 of dog
∴ K.E. of the horse is more than K.E. of dog
APPEARS IN
RELATED QUESTIONS
Write an expression for the kinetic energy of an object.
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
State two factors on which the kinetic energy of a moving body depends.
The kinetic energy of a body is the energy by virtue of its ______.
A body of mass 10 kg is moving with a velocity 20 m s-1. If the mass of the body is doubled and its velocity is halved, find:
- the initial kinetic energy, and
- the final kinetic energy.
Two bodies have masses in the ratio 5 : 1 and their kinetic energies are in the ratio 125 : 9. Calculate the ratio of their velocities.
By how much will the kinetic energy of a body increase if its speed is doubled?
Water stored in water dams possesses kinetic energy.
The kinetic energy of a body of mass 4 kg and momentum 6 Ns will be
When a bell fixed on a cycle rings, then the energy conversion that takes place is ______.
