Advertisements
Advertisements
प्रश्न
Explain the following:
Why does a boatman push the bank backward with a long bamboo pole, on launching his boat in the water?
उत्तर
On launching his boat in water, a boatman pushes the bank backward with a long bamboo pole. As a result, the bank offers equal and opposite reactions, and hence the boat move.
APPEARS IN
संबंधित प्रश्न
Name the S.I. and C.G.S. units of force. How are they related?
Write an expression for the force due to gravity on a body of mass m and explain the meaning of symbols used in it.
The force of attraction between two bodies at certain separation is 10 N. What will be the force of attraction between them if the separation is reduced to half?
State unit of mass in CGS system.
Describe, briefly how can you calculate the value of ‘g’ with a simple pendulum.
Name the physical quantity associated with the motion of a body.
What will be the momentum of a body at rest?
Why do the dust particles come out of a hanging carpet when it is beaten with a stick?
Name and state the action and reaction in the following case:
Firing a bullet from a gun.
A force acts for 0.1 s on a body of mass 3.2 kg initially at rest. The force then ceases to act and the body moves through 3 m in the next one second. Calculate the magnitude of force.
