EASY
9th ICSE
IMPORTANT
Earn 100

A cricket ball of mass 150 g moving at a speed of 25 m s-1 is brought to rest by a player in 0.03 s. Find the average force applied by the player.

Important Questions on Laws of Motion

EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(C)>Q 11
A force acts for 0.1 s on a body of mass 2.0 kg initially at rest. The force is then withdrawn and the body moves with a velocity of 2 m s-1. Find the magnitude of force.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(C)>Q 12
A body of mass 500 g, initially at rest, is acted upon by a force which causes it to move a distance of 4 m in 2 s. Calculate the force applied.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(C)>Q 13
A car of mass 480 kg moving at a speed of 54 km h-1 is stopped by applying brakes in 10 s. Calculate the force applied by the brakes.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(D)>Q 1
State the usefulness of Newton's third law of motion.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(D)>Q 2
State Newton's third law of motion.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(D)>Q 3
State and explain the law of action and reaction, by giving two examples.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(D)>Q 4
Name the action and reaction in firing a bullet from a gun.
EASY
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(D)>Q 4
Name the action and reaction in the case of hammering a nail.