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प्रश्न
Fill in the following blank with suitable word :
The acceleration due to gravity on the moon is about ………………of that on the earth.
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उत्तर
The acceleration due to gravity on the moon is about one-sixth of that on the earth.
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संबंधित प्रश्न
What do you mean by the term free fall ?
Explain why, if a stone held in our hand is released, it falls towards the earth.
What is the usual value of the acceleration due to gravity of earth ?
Explain why, the tip of a sewing needle is sharp.
An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s2.
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 metal ball of mass 5 kg falls from a height of 490 m. How much time it will take to reach the ground? (g = 9.8 m/s2)
Choose one or more correct alternatives.
Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?
- The horizontal applied force
- gravitational force
- reaction force in vertical direction
- force of friction
Right or wrong sentence.
Free fall of an object does not depend on the mass of the object.
Distinguish between:
Universal gravitational constant – Gravitational acceleration of earth.
