Question

a body is moving witg 20kmph in the first hour and 60 kmph in the next 2 hour.what is the average speed?

Answer 1

Speed = 20kmph, 60kmph

Total time = 1 hour + 2 hours = 3 hours

Now, we need to calculate the distance traveled during the first hour using the formula Distance = Speed × Time.

20kmph × 1 hour = 20km

Next, find the distance traveled in the next two hours.

60kmph × 2 hours = 120km

Then, find the total distance by adding 20km and 120km.

20km + 120km = 140km

To calculate the average speed, use the formula Average speed = Total distance ÷ Total time.

140km ÷ 3 hours = 46.67kmph

Therefore, the average speed is 46.67kmph.