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Write acceleration due to gravity value on the surface of Earth. - Science and Technology 1

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प्रश्न

Write acceleration due to gravity value on the surface of Earth.

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उत्तर

Acceleration due to gravity value on the surface of earth is 9.8 m/s2.

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अध्याय 1: Gravitation - Solve the following Questions

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संबंधित प्रश्न

Gravitational force acts on all objects in proportion to their masses. Why then, a heavy object does not fall faster than a light object?


A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground.


A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. Calculate when and where the two stones will meet.


A ball thrown up vertically returns to the thrower after 6 s. Find

  1. the velocity with which it was thrown up,
  2. the maximum height it reaches, and
  3. its position after 4 s.

What is the acceleration produced in a freely falling body of mass 10 kg ? (Neglect air resistance)


What is the force of gravity on a body of mass 150 kg lying on the surface of the earth? (Mass of earth = 6 x 1024 kg; Radius of earth = 6.4 x 106 m; G = 6.7 x 10-11 Nm2/kg2)


A stone is thrown vertically upwards with initial velocity u reaches a height ‘h’ before coming down. Show that the time taken to go up is the same as the time taken to come down.


Solve the problem.

If the mass of a planet is eight times the mass of the Earth and its radius is twice the radius of the Earth, what will be the escape velocity for that planet?


A force of 10 N acts on a body of mass 5 kg. Find the acceleration produced.


A force causes an acceleration of 10 m s-2 in a body of mass 500 g. What acceleration will be caused by the same force in a body of mass 5 kg?


How is the acccelaration due to gravity on the surface of the earth realted to its mass and radius ? 


A body is projected vertically upward with an initial velocity u . If acceleartion due to gravity is g , the time for which it remains in air , is : 


What is the acceleration due to gravity?


What is escape velocity? 


Explain why:
Objects fall to the earth.


Free fall of an object does not depend on the mass of the object.


Write scientific reason.

The value of gravitational acceleration (g) decreases as we go deep inside the earth.


Write scientific reason.

When we drop a feather and a stone at the same time from a height the stone reach the earth faster than a feather.


Define acceleration due to gravity.


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