An object is sliding down on an inclined plane. The velocity changes at a constant rate from 10 cm/s to 15 cm/s in 2 seconds. What is its acceleration?

5 c m / s^{2}

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7.5 c m / s^{2}

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2.5 c m / s^{2}

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12.5 c m / s^{2}

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Solution

The correct option is D $2.5 c m / s^{2}$
$a = \frac{v - u}{t} = \frac{15 - 10}{2} = 2.5 c m / s^{2}$

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