Question

1. During a race, a cyclist covers a total of 30 km distance in an hour. What is the
average speed of the cyclist?

(a)10 km/hr (b)20 km/hr (c)30 km/hr (d)300 km/hr​

Answer 1

Given,

Distance traveled by the cyclist = 30 km.

Time taken by the cyclist = 1 hour

To Find,

The average speed of the cyclist.

Solution,

The formula for calculating the average speed is

Average speed = Total distance traveled/Total time

In this case,

Total Distance traveled = 30 km

Total time taken = 1 hour

Now,

Average speed = 30/1

Average speed = 30 km/hr

Hence, the average speed of the cyclist is 30 km/hr.

Answer 2

Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance.

$\overline{v}=\frac{\bigtriangleup x}{\bigtriangleup t}$

$\overline{v}$ = average velocity

${\Delta x}$ = displacement

${\Delta t}$ = change in time

Given: Cyclist covers a total of $30km$ distance in an hour

Find the average speed of the cyclist

So, the speed is $=\frac{Distance}{Time}$

$\frac{30km}{1hr}$

$=30km/hr.$

So, the average speed of the cyclist is $30km/hr.$