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प्रश्न
What is the unit of force ?
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उत्तर
Newton is the unit of force.
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संबंधित प्रश्न
An object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason.
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
Fill in the following blanks with suitable word :
If there were no unbalanced force of……………….. and no…………………. resistance, a moving bicycle would go on moving for ever.
Explain why, it is dangerous to jump out of a moving bus.
State the various effects of force.
Give one example where a force stops a moving body.
Give one example where a force changes the speed of a moving body.
A 1000 kg vehicle moving with a speed of 20 m/s is brought to rest in a distance of 50 metres :
(i) Find the acceleration.
(ii) Calculate the unbalanced force acting on the vehicle.
If we release a magnet held in our hand, it falls to the ground. The force which makes the magnet fall down is an example of :
Why does it happen?
If a stationary bus suddenly speeds up, passengers are thrown in the backward direction.
