Advertisements
Advertisements
Question
state whether momentum is scalar or vector.
Advertisements
Solution
Momentum is a vector quantity and is dirceted along the direction of velocity.
APPEARS IN
RELATED QUESTIONS
A hockey ball of mass 200 g travelling at 10 m s−1 is struck by a hockey stick so as to return it along its original path with a velocity at 5 m s−1. Calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick.
A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.
Two billiard balls, each of mass 0.05 kg, moving in opposite directions with speed 6 ms-1collide and rebound with the same speed. What is the impulse imparted to each ball due to the other?
Define momentum of a body. On what factors does the momentum of a body depend ?
A plastic ball and a clay ball of equal masses, travelling in the same direction with equal speeds, strike against a vertical wall. From which ball does the wall receive a greater amount of momentum ?
Which physical quantity corresponds to the rate of change of momentum ?
Name the principle on which a rocket works.
Fill in the following blanks with suitable words :
Momentum is a _____________ quantity. Its unit is _____________.
Discuss the conservation of momentum in each of the following cases :
(i) a rocket taking off from ground.
(ii) flying of a jet aeroplane.
Why would an aircraft be unable to fly on the moon ?
