an aeroplane flies along the four sides of a square at the speeds of 200 400

Question

an aeroplane flies along the four sides of a square at the speeds of 200 400 600 and 800 kmh find the average speed of the plane around the field

 

please explain

Answer 1

Hi Amey, 

Explanation:

•Question: Why do we not use direction in our answer?

•Answer: Average speed does not take into account direction, so we do not have to include any direction into our calculations. (If the question had asked for velocity, we would have to pay attention to the different directions around the square.) 

•Question: What is the formula for solving this type of "average speed" problem?

•Answer: To find the average speed: (All added values of speed)/(the number of values)

Let's Solve!

Step One: Add all values for the speed (to find the total speed)

200+400+600+800=2000

Step Two: Divide by four (since we were given four different values for speed)

2000/4=500

∴The average speed of the plane is 500km/h 

Best, 

Starlyte H.