Advertisements
Advertisements
प्रश्न
When a boy doubles his speed, his kinetic energy becomes
विकल्प
half
double
four times
no change
Advertisements
उत्तर
four times
APPEARS IN
संबंधित प्रश्न
What is the kinetic energy of an object?
The energy of a flying kite is kinetic energy.
Two bodies of equal masses are moving with uniform velocities v and 2v. Find the ratio of their kinetic energies.
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.
Which would have a greater effect on the kinetic energy of an object : doubling the mass or doubling the velocity?
When a ball is thrown inside a moving bus, does its kinetic energy depend on the speed of the bus? Explain.
A car is accelerated on a levelled road and attains a speed of 4 times its initial speed. In this process, the kinetic energy of the car :
If an object has 0 momentum, does it have kinetic energy? Explain your answer.
An apple falling from a tree is an example for kinetic energy.
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:
