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प्रश्न
Name the physical quantity which is considered to be a measure of the quantity of motion of a body.
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उत्तर
Momentum is the physical quantity which is considered to be a measure of the quantity of motion of a body.
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संबंधित प्रश्न
Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m s−1 and 1 m s−1, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m s−1. Determine the velocity of the second object.
A shell of mass 0.020 kg is fired by a gun of mass 100 kg. If the muzzle speed of the shell is 80 m s–1, what is the recoil speed of the gun?
What is the SI unit of momentum ?
state whether momentum is scalar or vector.
Explain the meaning of the following equation : .
p = m x v
where symbols have their usual meanings.
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 principle is involved in the working of a jet aeroplane ?
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.
The rockets work on the principle of conservation of :
Two billiard balls A and B, each of mass 50 g and moving in opposite directions with speed of 5 ms–1 each, collide and rebound with the same speed. If the collision lasts for 10–3 s, which of the following statements are true?
- The impulse imparted to each ball is 0.25 kg ms–1 and the force on each ball is 250 N.
- The impulse imparted to each ball is 0.25 kg ms–1 and the force exerted on each ball is 25 × 10–5 N.
- The impulse imparted to each ball is 0.5 Ns.
- The impulse and the force on each ball are equal in magnitude and opposite in direction.
