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प्रश्न
Which of the following effect cannot be produced by an unbalanced force acting on a body?
विकल्प
change in speed of the body
change in shape of the body
change in direction of motion of body
change in state of rest of the body
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उत्तर
change in shape of the body
Unbalanced forces tend to change the state of motion of a body.
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संबंधित प्रश्न
State whether force is a scalar or a vector quantity?
Which of the two, balanced forces or unbalanced forces, can change the shape of an object ? Give an example to illustrate your answer.
Give one example where a force moves a stationary body.
Give one example where a force stops a moving body.
Give one example where a force changes the speed of a moving body.
A car is moving on a level road. If the driver turns off the engine of the car, the car’s speed decreases gradually and ultimately it comes to a stop. A student says that two forces act on the car which bring it to a stop. What could these forces be ? Which of these two forces contributes more to slow down and stop the car ?
What is the unit of force ?
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.
Give one example where a force stops a moving body .
The SI unit of force is ______.
