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प्रश्न
Explain why:
Objects fall to the earth.
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उत्तर
Objects fall on the earth due to gravitational force between the earth and object.
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संबंधित प्रश्न
State whether the following statement is true or false :
A falling stone also attracts the earth.
What do you understand by the term 'acceleration due to gravity of earth' ?
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.
Explain why, a wide steel belt is provided over the wheels of an army tank.
i) If g = GM/r2 then where will the value of g be high at Goa Beach or on top of Mount Everest?
The value of acceleration due to gravity of earth :
How is the acccelaration due to gravity on the surface of the earth realted to its mass and radius ?
Write scientific reasons.
When we drop a feather and a stone at the same time from a height the stone reach the earth faster than a feather.
Write scientific reasons.
The value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in a straight line.
The mass of planet ‘X’ is four times that of the earth, and its radius is double the radius of the earth. The escape velocity of a body from the earth is 11.2 × 103 m/s. Find the escape velocity of a body from the planet ‘X’.
