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प्रश्न
State whether the following statement is true or false :
A falling stone also attracts the earth.
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उत्तर
True
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संबंधित प्रश्न
What is the acceleration of free fall?
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.
When an object is dropped from a height, it accelerates and falls down. Name the force which accelerates the object.
Explain why, if a stone held in our hand is released, it falls towards the earth.
Explain why, a wide steel belt is provided over the wheels of an army tank.
Name the force which wears away two surfaces as they move over one another.
For freely falling object we can write the Newton’s second equation of motion as …..
What do you understand by the free fall?
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’.
Calculate the escape velocity on the surface of the moon given the mass and radius of the moon to be 7.34 × 1022 kg and 1.74 × 106 m respectively.
(Given: G = 6.67 × 10-11 Nm2/kg2)
