Advertisements
Advertisements
Question
What is meant by the term inertia?
Solution
The property of an object by virtue of which it neither changes its state nor tends to change the state is called inertia.
APPEARS IN
RELATED QUESTIONS
Calculate the momentum of the following :
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s
If the mass of a body and the force acting on it are both doubled, what happens to the acceleration ?
A water tanker filled up to `2/3` of its tank with water is running at a uniform speed. When the brakes are suddenly applied, the water in its tank would
The unit of measuring momentum of a moving body is :
What is Galileo's law of inertia?
Explain the following:
Why do fruits fall off the branches in the strong wind?
Explain the following:
Why does a pillion rider fall forward, when the driver of a two-wheeler suddenly applies the brakes?
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.
A heavy truck and bike are moving with the same kinetic energy. If the mass of the truck is four times that of the bike, then calculate the ratio of their momenta. (Ratio of momenta = 2:1)
