A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to Reduce the force exerted by the ball on hands.
3.A man is at rest in the middle of a horizontal plane of perfectly smooth ice. He can move himself to the shore by making use of Newton’s
9.An iron ball and a wooden ball of the same radius are released from the same height in a vacuum. The time taken by both of these to reach the ground is
An iron ball and a wooden ball of the same radius are released from the same height in a vacuum. The time taken by both of these to reach the ground is exactly equal.
10.A body lying at rest suddenly breaks into two parts of equal masses which start moving. The two parts will move in
A body lying at rest suddenly breaks into two parts of equal masses which start moving. The two parts will move in Opposite direction with equal speed.
Acceleration in the orbit which is equal to the acceleration due to gravity outside
Explanation:
The sensation of weightlessness in a spacecraft in an orbit is due to the acceleration in the orbit which is equal to the acceleration due to gravity outside.