UPSC Physics- Laws of Motion, Force, Work, Energy and Power, Centre of Mass Set 1

The working principle of a washing machine is:

Newton's laws of motion do not hold good for objects

A jet engine works on the principle of conservation of

Which one among the following is correct for resultant of balanced forces?

When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained by

A book is kept on the surface of a table. If the gravitational pull of the earth on the book is the force of action, then the force of reaction is exerted by

The pressure exerted on the ground by a man is greatest

If a ship moves from freshwater into seawater, it will

A man is at rest in the middle of a horizontal plane of perfectly smooth surface of ice. He can move himself to the shore by making use of Newton's

If an object having mass of 1 kg is subjected to a force of 1 N it moves with