Question: a mass m is projected vertically upward with an initial velocity u. the air resistance is given as kv^2. the mass returns to point of

a mass m is projected vertically upward with an initial velocity u. the air resistance is given as kv^2. the mass returns to point of projection with velocity v0. prove terminal velocity is given by

vT=uv0/sqrt(u^2-v0^2).

Hint distances travelled upwards and downwards are same.

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