Advertisements
Advertisements
प्रश्न
Fill in the following blanks with suitable words :
Momentum is a _____________ quantity. Its unit is _____________.
Advertisements
उत्तर
Momentum is a vector quantity. Its unit is kg.m/s.
APPEARS IN
संबंधित प्रश्न
Name the physical quantity which is considered to be a measure of the quantity of motion of a body.
state whether momentum is scalar or vector.
Explain how, a karate player can break a pile of tiles with a single blow of his hand.
What is the momentum in kg.m/s of a 10 kg car travelling at (a) 5 m/s (b) 20 cm/s, and (c) 36 km/h ?
Calculate the change in momentum of a body weighing 5 kg when its velocity decreases from 20 m/s to 0.20 m/s.
Name the principle on which a rocket works.
A boy of mass 50 kg running at 5 m/s jumps on to a 20 kg trolley travelling in the same direction at 1.5 m/s. What is their common velocity ?
A girl of mass 50 kg jumps out of a rowing boat of mass 300 kg on to the bank, with a horizontal velocity of 3 m/s. With what velocity does the boat begin to move backwards ?
A ball X of mass 1 kg travelling at 2 m/s has a head-on collision with an identical ball Y at rest. X stops and Y moves off. Calculate the velocity of Y after the collision.
A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B ?
