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प्रश्न
When we talk of a force acting on a body, it usually means :
विकल्प
electrical force
balanced force
unbalanced force
nuclear force
उत्तर
unbalanced force
Unbalanced forces are responsible for producing a change in the state of motion of a body. So when we talk of a force, it usually means unbalanced 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.
Name the unbalanced force which slows down a moving bicycle when we stop pedalling it.
State whether the following statement is true or false :
Unbalanced forces acting on a body change its shape.
State whether force is a scalar or a vector quantity?
Fill in the following blank with suitable word:
When a running car stops suddenly, the passengers are jerked …………………..
Explain why, it is dangerous to jump out of a moving bus.
Give one example where a force stops a moving body.
Give one example where a force changes the direction 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 ?
Why does it happen?
If a stationary bus suddenly speeds up, passengers are thrown in the backward direction.
