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Standard XII

Physics

3rd Equation of Motion

The motion of...

Question

The motion of car along y axis is v = -12t + 8. Find the acceleration of the car at t = 2 s.

m / s^{2}

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-12

m / s^{2}

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m / s^{2}

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-8

m / s^{2}

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Solution

The correct option is B -12 $m / s^{2}$
We know, v = u + at
On comparing the given equation,
We get,
u = 8 $m / s$
a = -12 $m / s^{2}$

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The motion of car along y axis is v = -12t + 8. Find the acceleration of the car at t = 2 s.

The correct option is B -12 m/s2We know, v = u + at​ On comparing the given equation, ​ We get, ​ u = 8 m/s a = -12 m/s2

The correct option is B -12 $m / s^{2}$
We know, v = u + at
On comparing the given equation,
We get,
u = 8 $m / s$
a = -12 $m / s^{2}$