A body of mass m is hanging from the hook of a spring balance and the balance is also hanging from the ceiling of a freely falling elevator. What will be the reading on balance?

A body is hanging from the hook of a spring balance and the balance is also hanging from the ceiling of a freely falling elevator. What will be the reading? Read more

Explain why the earth is flattened at the poles.

Explain why the earth is flattened at the poles. - Questions and Answers from Gravity and Gravitation, Mechanics, Physics, AnkPlanet. Read more

If an earth satellite moves to a lower orbit there is some dissipation of energy, and yet its speed increases. Explain.

If an earth satellite moves to a lower orbit there is some dissipation of energy, and yet its speed increases. Explain. - Questions and Answers Read more

The acceleration due to gravity on a planet is 196 cm/s². If it is safe to jump from a height of two metres on earth, what will be the corresponding safe height on the planet?

The value of g on a planet is 196 cm/s². If it is safe to jump from a height of two metres on earth, what will be the corresponding safe… Read more

Which takes more fuel, a voyage from the earth to the moon or from the moon to the earth? Explain.

Which takes more fuel, a voyage from the earth to the moon or from the moon to the earth? Explain. - Questions and Answers from Gravity and Gravitation. Read more

If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth? - Questions and Answers Read more

A thief weighing 60 kg jumps from the window of a house with a box of 40 kg in his hand. How much weight of the box will he experience?

A thief weighing 60 kg jumps from the window of a house with a box of 40 kg in his hand. How much weight of the box will he experience?… Read more

The acceleration of a falling body is measured inside an elevator travelling at constant speed 9.8 m/sec. What result is obtained?

The acceleration of a falling body is measured inside an elevator travelling at constant speed 9.8 m/sec. What result is obtained? - Questions and Answers Read more

How do the K.E. and P.E. of a satellite change when it moves around the earth in elliptical orbit?

How do the K.E. and P.E. of a satellite change when it moves around the earth in elliptical orbit? - Questions and Answers from Gravity and Gravitation Read more

In circular orbit, the satellite of earth has same K.E. and P.E. everywhere. Why?

In circular orbit, the satellite of earth has same K.E. and P.E. everywhere. Why? - Questions and Answers from Gravity and Gravitation Read more
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