Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
Advertisements
उत्तर
When a stationary car starts suddenly, the passengers are jerke backward.
APPEARS IN
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.
What do you understand by the terms “balanced forces” and “unbalanced forces” ? Explain with examples.
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 ?
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?
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.
