Question
A boy sitting in an open car moving with the constant
speed throws a ball straight up into the air. The ball falls βSolution
The moment ball is thrown, it is moving with the velocity of the car. According to the inertia of motion it will continue to move in the same direction with the same velocity. As the ball is moving up and the down it will maintain its forward motion but practically it is not possible to neglect the resistance caused by air friction. So, the ball will fall behind him.
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Β A hollow spherical metallic ball has an external diameter 8cm and is 1/2cm thick. The volume of the ball (in cm cube) is.
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Each question contains a statement followed by Quantity I and II. Read the information clearly and answer your questions accordingly.Β
Quanti...