Question

A cross-country skier can complete a 7.5km race in 45min. What is the skiers average speed?

Answer 1

answer is 10km . i know its right

Answer 2

Answer:

Average speed, v = 2.77 m/s

Explanation:

It is given that,

Distance to be covered in a race, d = 7.5 km = 7500 m

Time taken, t = 45 min = 2700 sec

We need to find the average speed of the skier. It can be calculated as :

$v=\dfrac{d}{t}$

$v=\dfrac{7500\ m}{2700\ s}$

v = 2.77 m/s

So, the skiers average speed of 2.77 m/s. Hence, this is the required solution.