Question

Which of the following units could be used for the average speed of an object? A. miles per centimeter (mi/cm) B. meters per second (m/s) C. hours per kilometer (hr/km) D. seconds per mile (s/mi)
THE CORRECT ANSWER IS ......
meters per second (m/s)

Answer 1

Answer:

B] Meters per second

Explanation:

• We know that speed = distance ÷ time. So hour per km and second per Mile cannot be the unit of average speed.
• Now the remaining options are miles per hour and Meter per second.

• In comparison with both of these;

we know that metre per second is the SI unit of average speed and hence the answer is meters per second.