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The displacement of a particle along the...

The displacement of a particle along the x-axis is given by `x=3+8t+7t^2`. Obtain its velocity and acceleration at `t=2s`.

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`x=3+8t+7t^2`, `v=(dx)/(dt)=8+14t`
`v_(t=2s)=8+14xx2=36ms^-1`, `a=(dv)/(dt)=14ms^-2`
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CENGAGE PHYSICS-BASIC MATHEMATICS-Exercise 2.6
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