An object of mass 'm' in air experiences a drag force D=bv. The velocity of the object at any time-t assuming that it starts falling vertically under gravity from rest is (2mg)/(kb) [1-e^(-(b//m)t)]. The value of 'k' is ( acceleration due to gravity , is g).

An object of mass 'm' in air experiences a drag force D=bv. The veloci

1.	An object of mass 'm' in air experiences a drag force D=bv. The velocity of the object at any time-t assuming that it starts falling vertically under gravity from rest is (2mg)/(kb) [1-e^(-(b//m)t)]. The value of 'k' is ( acceleration due to gravity , is g).
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