Question

4. A speed of 60 mi h is closest to which of the following? (2.54 cm = 1.00 in.)

A) 60 ml B) 20 m/s C) 30 km/h D) 120 m's E) 30 min

Answer 1

20m/s

Step-by-step explanation:

Given the speed of 60mi/hr, we are to convert it to m/s.

First we need to convert miles to metres

1 mile = 1609.34m

60mile = (60 * 1609.34)m

60 miles = 96,560.4m

Also converting 1 hr to secs

1 hr = 60 * 60 secs

1 hour = 3600s

60mi/hr = 96,560.4m/3600s

60mi/hr = 26.8m/s

Hence 60mi/hr is closest to 20m/s