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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
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms.
To stretch the bow, the archer applies a force that causes a change in its ______.
Write true or false.
A wet oily road offers more friction than a dry rough road.
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 coolie lifts a luggage
Name the type of force which act in the following case:
A boy opens the door
Fill in the blank.
The force acting on a mango falling from a tree is an example of .....................
State if the following statement is true or false. Correct the statement if it is false.
Force applied on an object can increase its mass.
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.
Give a reason for the following.
Vehicles skid on muddy and wet roads. Suggest what type of tires can prevent skidding of vehicles?
Give a reason for the following.
Boats and ships have streamlined shapes?
