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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Define acceleration due to gravity. - Science and Technology 1

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प्रश्न

Define acceleration due to gravity.

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एका वाक्यात उत्तर
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उत्तर

The acceleration produced in a body under the influence of the force of gravity alone is called acceleration due to gravity.

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पाठ 1: Gravitation - Solve the following Questions

संबंधित प्रश्‍न

A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate

  1. the maximum height to which it rises.
  2. the total time it takes to return to the surface of the earth.

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.

Which force is responsible for the moon revolving round the earth ?


State whether the following statement is true or false :
A falling stone also attracts the earth.


During a free fall, will heavier objects accelerate more than lighter ones ?


Give reason for the following :
The force of gravitation between two cricket balls is extremely small but that between a cricket ball and the earth is extremely large.


The values of g at six distances A, B, C, D, E and F from the surface of the earth are found to be 3.08 m/s2, 9.23 m/s2, 0.57 m/s2, 7.34 m/s2, 0.30 m/s2 and 1.49 m/s2, respectively.
(a) Arrange these values of g according to the increasing distances from the surface of the earth (keeping the value of g nearest to the surface of the earth first)
(b) If the value of distance F be 10000 km from the surface of the earth, state whether this distance is deep . inside the earth or high up in the sky. Give reason for your answer.


Name the force which pulled the apple off Isaac Newton’s tree.


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?


What will be the weight of a person on earth, who weighs 9N on the moon?


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


A force acts for 0.1 s on a body of mass 2.0 kg initially at rest. The force is then withdrawn and the body moves with a velocity of 2 m s-1. Find the magnitude of the force. 


Define the term acceleration due to gravity? Write its S.I. unit.


How are g and G realated ? 


A body falls freely under gravity from rest and reaches the ground in time t. Write the expression for the height fallen by the body.


Write scientific reason.

The value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in a straight line.


Distinguish between:

Universal gravitational constant - Gravitational acceleration of earth.


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