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प्रश्न
Fill in the blank.
.................... is the SI unit of force.
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उत्तर
Newton is the SI unit of force.
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
Fill in the blank
Rolling friction is ............. than sliding friction.
Fill in the blank.
Rolling friction is ........... than sliding friction.
Answer the following in detail.
Define friction and explain how it is useful to us.
Explain how friction can be minimized.
We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
