A cyclist rides north in and then south in .

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A cyclist rides

1.2\,\text{km}

north in

4\,\text{min}

and then

0.8\,\text{km}

south in

3\,\text{min}

. (a) Calculate his average speed for the whole trip. (b) Determine the magnitude and direction of his average velocity.

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