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A object falls from rest through a resis...

A object falls from rest through a resistive medium. The equation of its motion is `(dv)/(dt) = alpha -beta`v. Then

A

the initial acceleration = `alpha`

B

at time t , the velocity = `(alpha)/(beta) (1 - e^(-betat))`

C

when the acceleration is zero the velocity `= (alpha)/(beta)`

D

the constant `beta` has the dimension of time

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The correct Answer is:
A, B, C
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