Researchers from NASA performed an experiment that will carry a land rover of 900 kg on MARS at a velocity of 90 m/s using a parachute with a diameter of 100 m. How much velocity would be needed if the experiment will be performed on EARTH carrying 10 kg mass? Let the mass density of air on MARS be 0.2 kg/cu.m. The mass density of air on EARTH is 1.225 kg/cu.m.

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.