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प्रश्न
What is the relationship between force and acceleration ?
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उत्तर
The acceleration produced in a body is directly proportional to the force acting on it.
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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.
Explain why, it is dangerous to jump out of a moving bus.
What happens to the passengers travelling in a bus when the bus takes a sharp turn ? Give reasons for your answer.
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 ?
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 .
When a rubber balloon held between the hands is pressed, its shape changes. This happens because :
Which of the following effect cannot be produced by an unbalanced force acting on a body?
Why does it happen?
If a stationary bus suddenly speeds up, passengers are thrown in the backward direction.
