Two bodies of mass M and m are allowed to fall from the same height. If the air resistance for each be the same, then will both the bodies reach the earth simultaneously?

Explanation

No, The forces acting on the body of mass M are: It's weight Mg and resistance F. `therefore` net force = Mg- F Now acceleration `a = (Mg - F)/M = g - F/M`
Thus, acceleration of the ody of large mass will be greater and hence it will reach earlier.