Advertisements
Advertisements
प्रश्न
Explain the meaning of the following equation : .
p = m x v
where symbols have their usual meanings.
Advertisements
उत्तर
The given equation describes the momentum of a body as the product of its mass and velocity.
P = m × v
where, P = momentum
m = mass of the body
v = velocity of the body
APPEARS IN
संबंधित प्रश्न
Name the physical quantity which is considered to be a measure of the quantity of motion of a body.
What is the total momentum of the bullet and the gun before firing ?
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.
Fill in the following blanks with suitable words :
Momentum is a _____________ quantity. Its unit is _____________.
A 10 g bullet travelling at 200 m/s strikes and remains embedded in a 2 kg target which is originally at rest but free to move. At what speed does the target move off ?
A body of mass 2 kg is at rest. What should be the magnitude of force which will make the body move with a speed of 30 m/s at the end of 1 s ?
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.
A man wearing a bullet-proof vest stands still on roller skates. The total mass is 80 kg. A bullet of mass 20 grams is fired at 400 m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?
