NEET Physics Motion in A Straight Line Questions Solved

The displacement x of a particle varies with time t, x=aeαt+beβt, where a,b,α and β are positive constants. The velocity of the particle will 

(1) Go on decreasing with time

(2) Be independent of α and β

(3) Drop to zero when α = β

(4) Go on increasing with time

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Instantaneous speed and instantaneous velocity
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