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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
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.
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
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
On what factor does the inertia of a body depend ? Which has more inertia, a cricket ball or a rubber ball of the same size ?
Explain why, a person travelling in a bus falls forward when the bus stops suddenly.
Why does a ball thrown vertically upwards in a moving train , come back to the thrower's hand ?
Explain the following :
When a corridor train suddenly starts , the sliding doors of some compartments may open .
Explain the following :
It is advantageous to run before taking a long jump .
Multiple Choice Question. Select the correct option.
When you kick a stone, you get hurt. Due to which property this happens?
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.
