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प्रश्न
Select the correct alternative.
A force does not change
विकल्प
mass
length
shape
state of motion.
उत्तर
mass
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संबंधित प्रश्न
Give one example of changes the direction of motion to indicate that the application of a force?
State the effect produced by a force in the following case:
A spring is compressed.
Name the type of force which act in the following case:
A stone falls from a roof
What do you understand by the term friction?
Answer the following in a word or two or in a sentence.
Name the force that is responsible for the falling of a stone from a height to the ground.
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.
Solve the following numerical problem.
Two persons are pushing a car with a force of 30 N and 70 N in opposite directions. Calculate the resultant force and its direction.
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.
A ball of dough Is rolled into a flat chapatti. Name the force exerted to change the shape of the dough.
A girl is pushing a box towards east direction. In which direction should her friend push the box so that it moves faster in the same direction?
