Assertion : Two bodies of masses M and m ( M m ) are allowed to fall from the same height if the air resistance for each be the same then both the bodies will reach the earth simultaneously. Reason

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Assertion : Two bodies of masses M and m ( M > m ) are allowed to fall from the same height if the air resistance for each be the same then both the bodies will reach the earth simultaneously. Reason : For same air resistance, acceleration of both the bodies will be same.

TestHub · Accepted Answer

The force acting on the body of mass M are its weight M g acting vertically downwards ∴ and air resistance F acting vertically upward. ∴ Acceleration of the body a = M M g − F ​ = g − M F ​ Now, M > m , therefore, the body with larger mass will have greater acceleration and it will reach the ground first.

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