Multiple choice

A train $132$ m long passes a telegraph pole in $6$ seconds. Find the speed of the train in km/hr.

  1. $50.4$ km/hr
  2. $98$ km/hr
  3. $79.2$ km/hr
  4. $85$ km/hr
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C Correct answer
Explanation

Speed = Distance / Time = 132 m / 6 s = 22 m/s. Convert to km/hr: 22 * (18/5) = 79.2 km/hr.

AI explanation

Using the formula speed equals distance divided by time, the speed is 132 m divided by 6 seconds, which equals 22 m/s. To convert this to km/hr, multiply by 18/5 to get 22 multiplied by 18/5, which equals 396/5. This calculation gives a speed of 79.2 km/hr. The result is 79.2 km/hr.