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The displacement x of a particle varies ...

The displacement x of a particle varies with time according to the relation `x=(a)/(b) alpha-e^(-bt) ) ` Then :

A

At `t = 1//b` the displacment of the particle in nearly (1/3)(a/b)

B

The velocity and acceleration of the particle at t = 0 and a and -ab respectively

C

Both 1 and 2

D

At t = 1/b , the displacement of the particle is (3/5) (a/b)

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The correct Answer is:
B
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