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प्रश्न
A force is needed to :
पर्याय
Change the state of motion or state of rest of the body .
Keep the body in motion
keep the body stationary
keep the velocity of body constant .
उत्तर
A force is needed to : Change the state of motion or state of rest of the body.
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संबंधित प्रश्न
Explain giving two examples of following :
Contact forces
State the effects of a force applied on
- A non-rigid, and
- A rigid body.
How does the effect of the force differ in the two cases?
Which of the following is a contact force:
The non - contact force is :
'More the mass, the more difficult it is to move the body from rest'. Explain this statement by giving an example.
A car of mass 800 kg, moving at 54 kmh−1 is brought to rest over a distance of 15 m. Find the retarding force developed by the brakes of the car.
What is the ratio of SI to CGs units of force?
What is a non-contact force?
A gas filled balloon moves up. Is the upward force acting on it larger or smaller than the force of gravity?
Figure shows a man with a parachute. Name the force which is responsible for his downward motion. Will he come down with the same speed without the parachute?
