Question

do the question of attachment​

Answer 1

Answer:

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Answer 2

Explanation:

We Have :-

Time t

Initial Velocity v

Rate of Change of Velocity = -Kv²

To Find :-

Velocity after Time t

Formula Used :-

v = u + a t ( First equation of motion )

Solution :-

Rate of Change of Velocity has units m/s²

So we can say Rate of Change of Velocity is Acceleration

Negative sign shows its Retardation

So we have now

Time t

Initial Velocity v

Acceleration -Kv²

Final velocity ?

v = u + at

v' = v - Kv²t

Velocity after Time t is v - Kv²t m/s