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प्रश्न
What happens to the passengers travelling in a bus when the bus takes a sharp turn ? Give reasons for your answer.
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उत्तर
When a bus turns a corner sharply, the passengers tend to fall sideways because of their tendency to continue moving in the straight line (inertia).
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संबंधित प्रश्न
What is the usual name of the forces which cannot produce motion in a body but only change its shape ?
State whether the following statement is true or false :
Unbalanced forces acting on a body change its shape.
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
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 changes the direction of a moving body.
Give one example where a force changes the shape (and size) of a body.
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 ______.
