AnswerQ.No.3.1-3.4 on the basis of your understanding of the
following paragraph and the related studied concepts:
A fast moving cricket ball has a large momentum.In stopping or
catching this ball,its momentum has reduced to be zero.Now,
when a cricket player moves back his hand soon catching the fast
ball ,then the time taken to reduce the momentum of ball to zero is
increased.Due to more time taken to stop the ball,the rate of
change of momentum of ball is decreased and hence as mall force
is exerted on the hands of player.So,the hands of player donot get hurt.
3.1What is momentum?
3.2 On what factors does the momentum of a body depends?
3.3Which of the Newton's law can be involved in above situation?
3.4Whatisthemomentum of a man of mass 75kg when he walks
with a uniform velocity of 2m/s?
Answers
Answer:
AnswerQ.No.3.1-3.4 on the basis of your understanding of the
following paragraph and the related studied concepts:
A fast moving cricket ball has a large momentum.In stopping or
catching this ball,its momentum has reduced to be zero.Now,
when a cricket player moves back his hand soon catching the fast
ball ,then the time taken to reduce the momentum of ball to zero is
increased.Due to more time taken to stop the ball,the rate of
change of momentum of ball is decreased and hence as mall force
is exerted on the hands of player.So,the hands of player donot get hurt.
3.1What is momentum?
3.2 On what factors does the momentum of a body depends?
3.3Which of the Newton's law can be involved in above situation?
3.4Whatisthemomentum of a man of mass 75kg when he walks
with a uniform velocity of 2m/s?
Answer:
3.1 momentum is the measure of amount of force to be applied in order to stop a moving object.
3.2 mass and velocity
3.3 2nd law
Explanation:
3.1 no explanation, answer given above
3.2 since momentum= mass× velocity
(p=mv)
3.3 since the second law of motion states that rate of change of momentum of an object is directly proportional to the applied unbalanced force in the direction of force, therefore the 2nd law of motion is applicable to this situation.
hope it helped