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प्रश्न
Select the correct alternative.
A force to be expressed correctly requires
पर्याय
only the magnitude
only the direction
both the magnitude and direction
none of the above.
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उत्तर
both the magnitude and direction
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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 force can change the direction of motion of a moving body.
Write true or false.
A force increases the mass of the body when applied on it.
Select the correct alternative.
Friction
Give one example of force as a stretch
What effect can a force produce on a body which is not allowed to move?
State the effect produced by a force in the following case:
A cyclist applies brakes
Name the type of force which act in the following case:
A boy opens the door
Which offers more friction on a body: a glass surface or a wooden surface?
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.
