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Kinetic Energy

The displacem...

Question

The displacement s of an object is given as a function of time t
$s = 5 t^{2} + 9 t$
Calculate the instantaneous velocity of object at t = 0.

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Solution

$S = 5 t^{2} + 9 t$
instantaneous velocity at t = 0
$\frac{d 5}{d t} = v$
$10 t + 9$ , at t = 0
$v = 9 \frac{m}{s}$

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