A large stone of 20kg and small stone of 5kg are dropped .simultaneously from certain height .which one will reach on the ground first?why? the mass and radius of the moon are 7.1×10^ kg and 1.7×10cube km respectively calculate the acceleration due to gravity on the moon's surface
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Explanation:
If Earth had no atmosphere both stones would hit the ground simultaneously.
The Earth having an atmosphere changes this a little bit. The rocks are immersed in air, which gives a buoyant force which is equal to the weight (not the mass) of the displaced air. However, if we assume both rocks to have the same density in kg per cubic meter, the force on the larger rock will be exactly four times larger than that of the smaller rock. The masses being in the same ratio, both rocks will endure the same correction in acceleration, so they will arrive on the ground a little later, but still simultaneous.
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