Advertisements
Advertisements
प्रश्न
Explain why, a wide steel belt is provided over the wheels of an army tank.
Advertisements
उत्तर
An army tank is a very heavy vehicle. In order to make it travel faster over different kinds of ground surfaces, they are provided with wide steel belt. This wide steel belt spreads the weight of the tank over a larger surface area by exerting a smaller pressure on ground, as we know pressure is inversely proportional to the surface area of an object.
APPEARS IN
संबंधित प्रश्न
A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate
- the maximum height to which it rises.
- the total time it takes to return to the surface of the earth.
A pressure of 10 Pa acts on an area of 3.0 m2. What is the force acting on the area ? What force will be exerted by the application of same pressure if the area is made one-third ?
A ball falls off a table and reaches the ground in 1 s. Assuming g=10 m/s2, calculate its speed on reaching the ground and the height of the table.
The total energy of an object falling freely towards the ground ______.
A force of 15 N acts on a body of mass 2 kg. Calculate the acceleration produced.
What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand? State the assumption.
What is escape velocity?
The value of gravitational acceleration (g) is ________.
Write acceleration due to gravity value on the surface of Earth.
The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth.
