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प्रश्न
What is Galileo's law of inertia?
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उत्तर
Galileo's law of inertia states that a body continues to be in its state of rest or of uniform motion unless an external force is applied on it.
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संबंधित प्रश्न
Explain why some of the leaves may get detached from a tree if we vigorously shake its branch.
Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
Why does a ball thrown vertically upwards in a moving train , come back to the thrower's hand ?
Explain the following :
It is advantageous to run before taking a long jump .
Give two examples of inertia kinds.
Multiple Choice Question. Select the correct option.
Inertia is the property of a body by virtue of which the body is:
A man of mass 100 kg has a weight of ______ at the surface of the Earth.
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.
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)
