Advertisements
Advertisements
प्रश्न
Why is it advised to tie any luggage kept on the roof of a bus with a rope?
Advertisements
उत्तर
- Luggage is usually secured with a rope to the roof of buses. When a moving bus comes to an abrupt stop, the luggage on its roof tends to remain in motion due to inertia.
- As a result, the luggage falls from the roof of the bus. Similarly, when a bus suddenly starts, the luggage on the roof of the bus tends to remain in a position of rest and so slides off the roof.
- Thus, to prevent the luggage from dropping, it is attached with a rope to the roof of a bus.
APPEARS IN
संबंधित प्रश्न
In the following example, try to identify the number of times the velocity of the ball changes:
“A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team”.
Also identify the agent supplying the force in each case.
What is the momentum of an object of mass m, moving with a velocity v?
What will be the momentum of a body of mass ‘m’ which is moving with a velocity V ?
Calculate the momentum of the following :
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s

The inertia of an object tends to cause an object :
A water tanker filled up to `2/3` of its tank with water is running at a uniform speed. When the brakes are suddenly applied, the water in its tank would
A Honda City car, a Maruti Alto car, A Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50 m/s under identical conditions. If all these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in :
Explain the following:
Why does dust fly off, when a carpet is hit with a stick?
Explain the following:
Why does a pillion rider fall forward, when the driver of a two-wheeler suddenly applies the brakes?
Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms-2. What could be the acceleration of the other body, if the same force acts on it.
