Explain why, it is easier to stop a tennis ball than a cricket ball moving with the same speed.

With which physical quantity should the speed of a running bull the multiplied so as to obtain its momentum?

Fill in the following blanks with suitable words:

(a) …………… is a measure of the inertia of a body.

(b) When a running car stops suddenly, the passengers are jerked …………..

(c) When a stationary car starts suddenly, the passengers are jerked …………

(d) Newton’s first law of motion is also called Galileo’s law of …………..

(e) If there were no unbalanced force of …… and no ………..resistance, a moving bicycle would go on moving forever.

Explain the meaning of the following equation:

P = m × v

Where symbol have their usual meaning

Explain how, a karate player can break a pile of tiles with a single blow of his hand.