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प्रश्न
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.
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उत्तर
If there were no unbalanced force of friction and no air resistance, a moving bicycle would go on moving forever.
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संबंधित प्रश्न
Give one example where a force stops a moving body.
Give one example where a force changes the direction of a moving body.
What happens to the passengers travelling in a bus when the bus takes a sharp turn ? Give reasons for your answer.
There are two types of forces X and Y. The forces belonging to type X can produce motion in a stationary object but cannot change the shape of the object. On the other hand, forces belonging to type Y cannot produce motion in a stationary object but can change the object. What is the general name of the forces as (a) X, and (b) Y?
What is the relationship between force and acceleration ?
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.
When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
When we talk of a force acting on a body, it usually means :
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.
