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प्रश्न
A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
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उत्तर
We know that:
Momentum = mass × velocity
= m × v
Here, mass, m = 25 kg
And, momentum = 125 kg.m/s
Putting these values in the above formula, we get:
125 kg.m/s = 25 × velocity
⇒ Velocity = `125/25`
⇒ Velocity = `125/25`
⇒ Velocity = 5 m/s
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संबंधित प्रश्न
Which of the following has more inertia:
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- a bicycle and a train?
- a five-rupees coin and a one-rupee coin?
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
The unit of measuring momentum of a moving body is :
Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
The property of inertia is more in :
What are inertia kinds?
Explain the following:
Why does dust fly off, when a carpet is hit with a stick?
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be ______ kg.
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.
What are the types of inertia? Give an example for each type.
