science
Grade-7
Easy

Question

A horse covers 500 m in 2 minutes. Its speed in SI units is ___.

  1. Always equal to 2.77 m/s
  2. 4.16 m/minute
  3. 2.77 m/minute
  4. 4.16 m/s

hintHint:

Speed = Distance/Time

The correct answer is: 4.16 m/s


    Speed = Distance/Time
    Distance = 500m
    Time = 2min = 60cross times2 sec. = 120 seconds
    Speed = 500 over 120
 ms-1


    Speed = 4.16 ms-1

    The SI unit of distance is Meter(m) and SI unit of time is Seconds (s).

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