Question

A flight from london to barcelona takes two hours. It covers a distance of 900 miles. Calculate the speed of the plane in miles per hour

Answer 1

Answer: The speed of the plane in miles/ hour is equal to 450miles/ hour.

Step-by-step explanation:

Speed has the property of magnitude ( size) but no direction. For example, an object moving at a speed of 40m/s has a higher speed that one moving at a speed of 20m/s.

The SPEED of an object is defined as the rate of change of distance moved with time. Thus, if a journey from London to Barcelona is 900miles and takes 2 hours. The speed of the plane is determined using the formula below:

Average speed = distance/ time

Distance = 900miles

Times = 2hours

Therefore speed = 900 ÷2

SPEED = 450miles/hour

Note that speed is measured in meter per second. But according to the instruction given from the question, it was stated that the speed should be calculated in miles per hour. Therefore the answer is 450miles/hour.

Answer 2

Speed = 450 miles per hour

Step-by-step explanation:

Given the following data;

Time = 2 hours

Distance = 900 miles

To find the speed of the plane;

Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.

Mathematically, speed is given by the equation;

`Speed = (distance)/(time)`

Substituting into the formula, we have;

`Speed, S = (900)/(2)`

Speed = 450 miles per hour