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?
Advertisements
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
The separation between two masses is reduced to half. How is the magnitude of gravitational force between them affected?
A body of mass 500 g, initially at rest, is acted upon by a force which causes it to move a distance of 4 m in 2 s, Calculate the force applied.
A car of mass 480 kg moving at a speed of 54 km h-1 is stopped by applying brakes in 10 s . Calculate the force applied by the brakes .
How does the gravitational force of attraction between two masses depend on the distance between them?
The value of G is :
A body falls from the top of a building and reaches the ground 2.5 s later. How high is the building? (Take g = 9.8 m s-2)
Name the physical quantity associated with the motion of a body.
Define the constant of gravitation.
Define one newton. What is the ratio of SI to CGS units of force?
Write the SI unit of retardation.
