Question

A car travels at 20 meters per second.

What is its rate in kilometers per hour?

1.2 kilometers per hour
56 kilometers per hour
72 kilometers per hour
5.6 kilometers per hour

Answer 1

20 m/s × (3600 s / 1 h) × (1 km / 1000 m) = 20 × 3.6 = 72 km/h.

Answer: 72 kilometers per hour.