Question

The Earth travels around the Sun at a speed of approximately 18.5 miles per second. This approximate speed is how many miles per hour?

Answer 1

`speed = 66,600` miles/hr

Explanation:

`rArr 1s rarr 18.5` miles
`rArr 60s rarr (18.5 * 60)` miles

`i.e., 1min rarr 1110` miles
`rArr 60min rarr (1110 * 60)`

`i.e., 1hr rarr 66,600` miles