Question

speed is Greater 20 metre per second or 90 km per hour​

Answer 1

Answer:

90km/h > 20m/s

Step-by-step explanation:

m/s to km/h ⇒ multipy by $\frac{18}{5}$

20m/s = $20 * \frac{18}{5}\\= 4 * 18\\= 72km/h$

90 > 72

∴ 90 km/h > 72 km/h

∴ 90km/h > 20m/s

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