Question

Express a speed of 80km per hour in meter per second.​

Answer 1

$\huge \: 80 \: \frac{km}{hr} = \frac{80 \times {10}^{3} }{3600} \frac{m}{sec} \\ \\ \\ \huge \: = \frac{8 \times {10}^{2} }{36} \: \frac{m}{sec} \\ \\ \\ \huge \: = \frac{2 \times {10}^{2} }{9} \: \frac{m}{sec}$

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