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प्रश्न
Answer the following in a word or two or in a sentence.
Which force is responsible for supporting the weight of a book placed on a table?
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उत्तर
Normal force (contact force)
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संबंधित प्रश्न
Fill in the blank.
Friction ....................... the motion.
Select the correct alternative.
Friction
Give one example of force as a stretch
Give one example of force as a squeeze
Name the type of force which act in the following case:
A comb rubbed with silk attracts the bits of paper
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?
State if the following statement is true or false. Correct the statement if it is false.
Friction always acts in the direction of motion of an object.
State if the following statement is true or false. Correct the statement if it is false.
Tires of vehicles are provided with grooved designs to decrease friction.
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.
