Question

A bus takes 8 hours to cover a distance of 320 km. what is the average speed of the bus .
Express the speed in SI unit

REMEMBER :Express the speed in SI unit
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Answer 1

Answer:

Step-by-step explanation:

Given:-

• Time is 8 hours or if converted to seconds it is 28800 seconds
• Distance is 320 km or Converted to metre it is 320000m.

Solution:-

We know the formula to find speed it is

Average Speed =Total Distance/Total Time

Average speed = 320000/28800

Average speed = 3200/288

Average Speed = 11.11( approx.)m/s

Things to Remember:-

• Speed= Distance/ Time
• Always convert the Units into SI Unit
• SI Unit of speed is metre/seconds
• SI Unit of Distance is metre(m)
• SI unit of Time is seconds(s)

Answer 2

Answer:

Distance = 320km.

Time = 8 hour

Average speed = Total distance

Total time taken

= 320

8

= 40 km per hour

= 40,000m per s

Hope it helps .....,...