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The displacement x of an object is given...

The displacement x of an object is given as a function of time `x=2t+3t^(2)`
Calculate the instantaneous velocity of the object at t = 2 s

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`x=2t+3t^(2)`
`v=(dx)/(dt)=2+6t`
Substituting the value of t as 2, we get
`v=2+6xx2`
`=14m//s`
So the instantaneous velocity of the object at t = 2 s
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AAKASH INSTITUTE-MOTION IN A STRAIGHT LINE-ASSIGNMENT (SECTION - D)
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  7. A : If speed of a particle is never zero than it may have zero averag ...

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  8. A : The magntidue of average velocity in an interval can never be grea...

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  9. A : The area under acceleration - time graph is equal to velocity of o...

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  10. A : The motion of body projected under the effect of gravity without a...

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  11. A : The relative acceleration of two objects moving under the effect o...

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  12. A : In the presence of air resistance, if the ball is thrown verticall...

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  15. A : Average velocity can be zero, but average speed of a moving body c...

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