Pls a rocket moves at the speed of 4.9 miles per second. how fast is the rocket traveling kilometers/hour (km/h)? (1 mile = 1.6 kilometer) 0.0008 km/h 0.0022 km/h 11,025 km/h 28,224 km/h

There is 3600 seconds per hour.
 Multiply the speed per second by 3600 to get the speed in miles per hour then convert to kilometer/hour.

4.9 * 3600 = 17,640 miles per hour

17,640 x 1.6 = 28,224 kilometers per hour

Two because two of one thing is two.