Advertisements
Advertisements
प्रश्न
What is momentum? Write its SI unit. Interpret force in terms of momentum. Represent the following graphically
(a) momentum versus velocity when mass is fixed.
(b) momentum versus mass when velocity is constant.
उत्तर
Momentum is a property of a moving body by the virtue of both its mass and velocity. It is equal to the product of
mass and velocity. p = m × v
Its SI unit is kg ms−1
As momentum = mass x velocity
(a) When the mass is fixed,
momentum α velocity
(b) When velocity is constant,
momentum α mass
APPEARS IN
संबंधित प्रश्न
Give two examples of situations in which applied force causes a change in the shape of an object.
Write true or false.
A wet oily road offers more friction than a dry rough road.
Which offers more friction on a body: a glass surface or a wooden surface?
Tick the most appropriate answer.
Which of the following is not an effect of force?
Answer the following in a word or two or in a sentence.
What do you understand by magnetic force?
Identify the agent exerting the force, the object on which the force is acting and the effect of the force in the following situation
Squeezing out the juice from an orange.
State if the following statement is true or false. Correct the statement if it is false.
Friction wears down the parts of machi
Answer the following in a word or two or in a sentence.
A child tries to slide a wooden block on the top of a table, but she is unable to get a smooth movement. What material do you suggest she should use in between the block and the table to get a smooth movement?
Give a reason for the following.
Vehicles skid on muddy and wet roads. Suggest what type of tires can prevent skidding of vehicles?
Mention the factors on that the effect of a force depends.
