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Different Kinds of Motion

A body has an...

Question

A body has an acceleration of $10 k m / h^{2}$ . Find its value in CGS system

0.0772 c m / s^{2}

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0.00772 c m / s^{2}

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0.772 c m / s^{2}

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0.000772 c m / s^{2}

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Solution

The correct option is A $0.0772 c m / s^{2}$
Dimension of acceleration is $L T^{- 2}$
$1 k m = 1000 m = 100000 c m, 1 h r = 3600 s$
Thus, $10 k m / h^{2} = 10 \times 10^{5} \times 3600^{- 2}$
$= \frac{10^{6}}{3600^{2}}$
$= 0.0772 c m / s^{2}$

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