In what direction does the buoyant force on an object immersed in a liquid act?
An object immersed in a liquid experiences buoyant force in the upward direction.
How does the force$(F)$ of gravitation between two objects change when the distance between them is reduced to half ?
If the moon attracts the earth, why does the earth not move towards the moon?
A ball is thrown vertically upwards with a velocity of $49\, m/s$. Calculate
$(i)$ the maximum height to which it rises,
$(ii)$ the total time it takes to return to the surface of the earth.
Why does an object float or sink when placed on the surface of water?
Gravitational force on the surface of the moon is only $\frac {1} {6}$ as strong as gravitational force on the earth. What is the weight in newtons of a $10\, kg$ object on the moon and on the earth?
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