Aparticle m is thrown vertically upward with an initial velocity v. assuming a resisting medium proportional to the velocity, where the proportionality factor is c, calculate the velocity with which the particle will strike the ground upon its return if there is a uniform gravitational field.

Explanation:

Given

v=initial velocity

resisting acceleration =cv

also gravity is opposing the upward motion

Therefore distance traveled during upward motion

Where a=cv+g

Now let v_0 be the velocity at the ground

substituting s value

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12000j is work done