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प्रश्न
What is the momentum of an object of mass m, moving with a velocity v?
विकल्प
(mv)2
mv2
½ mv2
mv
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उत्तर
mv
Explanation:
Mass of the object = m
Velocity = v
Momentum = Mass × Velocity
Momentum = mv
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संबंधित प्रश्न
In the following example, try to identify the number of times the velocity of the ball changes:
“A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team”.
Also identify the agent supplying the force in each case.
Describe the term ‘inertia’ with respect to motion.
Why do the passengers in a bus tend to fall backward when it starts suddenly ?
Explain why, a person travelling in a bus falls forward when the bus stops suddenly.
What is meant by the term inertia?
Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
Explain the following:
Why does dust fly off, when a carpet is hit with a stick?
Explain the following:
Why is it difficult to walk on marshy ground?
Multiple Choice Question. Select the correct option.
When you kick a stone, you get hurt. Due to which property this happens?
Assertion & Reasoning
- Assertion: The value of ‘g’ decreases as height and depth increase from the surface of the Earth.
- Reason: ‘g’ depends on the mass of the object and the Earth.
