Question

Using the formula for velocity shown below, what is the average velocity of a bicyclist who biked 20 miles north of where he began for a duration of 4 hours?

Answer 1

8.1km/hr due North

Explanation:

Given parameters:

Displacement = 20 miles North

Time = 4hours

Unknown;

Velocity = ?

Solution:

Velocity is the speed in a particular direction. It is simply displacement divided by time. A change in position with time.

                Velocity = $\frac{displacement}{time}$

The unit is usually expressed in km/hr or m/s

We need to convert the given displacement to that in km:

              1 mile = 1.609km

             20miles = 1.609 x 20,   32.18km

Velocity  =   $\frac{32.18}{4}$ = 8.1km/hr due North

Learn more:

Velocity brainly.com/question/10962624

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