Advertisements
Advertisements
प्रश्न
Name the physical quantity whose unit is kg.m/s.
Advertisements
उत्तर
Momentum is the physical quantity whose unit is kg.m/s.
APPEARS IN
संबंधित प्रश्न
An object of mass 1 kg travelling in a straight line with a velocity of 10 ms−1 collides with, and sticks to, a stationary wooden block of mass 5 kg. Then they both move off together in the same straight line. Calculate the total momentum just before the impact and just after the impact. Also, calculate the velocity of the combined object.
Figure shows a man standing stationary with respect to a horizontal conveyor belt that is accelerating with 1 m s–2. What is the net force on the man? If the coefficient of static friction between the man’s shoes and the belt is 0.2, up to what acceleration of the belt can the man continue to be stationary relative to the belt? (Mass of the man = 65 kg.)

Name the physical quantity which is considered to be a measure of the quantity of motion of a body.
Explain why, it is easier to stop a tennis ball than a cricket ball moving with the same speed.
Explain the meaning of the following equation : .
p = m x v
where symbols have their usual meanings.
Calculate the momentum of a toy car of mass 200 g moving with a speed of 5 m/s.
Name the principle on which a rocket works.
Why are car seat-belts designed to stretch some what in a collision ?
Why would an aircraft be unable to fly on the moon ?
Explain why it is possible for a small animal to fall from a considerable height without any injury being caused when it reaches the ground.
