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प्रश्न
Tick the most appropriate answer.
Which of the following is a contact force?
पर्याय
Gravitational force
Frictional force
Electrostatic force
Magnetic force
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उत्तर
Frictional force
APPEARS IN
संबंधित प्रश्न
Write true or false.
The frictional force acts in the direction of motion of body
Select the correct alternative.
A force does not change
Name the type of force which act in the following case:
A horse moves a cart
Answer the following in a word or two or in a sentence.
Give an example in which a force can change the direction of an object.
Answer the following in short.
What will happen to an object if two equal forces act on it in opposite directions?
Solve the following numerical problem.
Two horses pull a cart in the same direction with a force of 500 N each. Find the resultant force acting on the cart.
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.
Answer the following in short.
Why do wrestlers rub powder on their hands before getting into the ring?
Name the type of force which act in the following case:
A string hangs with a load.
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.
