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प्रश्न
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 :
पर्याय
balanced force
unbalanced force
magnetic force
muscular force
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उत्तर
unbalanced force
This is because an unbalanced force is responsible to bring about a change in the state of motion of an object.
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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 blanks with suitable word :
If there were no unbalanced force of……………….. and no…………………. resistance, a moving bicycle would go on moving for ever.
Which of the two, balanced forces or unbalanced forces, can change the shape of an object ? Give an example to illustrate your answer.
Explain why, it is dangerous to jump out of a moving bus.
Give one example where a force moves a stationary body.
Give one example where a force changes the speed of a moving body.
What type of forces – balanced or unbalanced – act on a rubber ball when we press it between our hands ? What effect is produced in the ball ?
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?
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.
The SI unit of force is ______.
