A boy walks east and then west in

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A boy walks

40\,\text{m}

east and then

40\,\text{m}

west in

40\,\text{s}

. Let

v_s

be the average speed and

v_v

be the magnitude of average velocity for the entire walk. Which statement is correct? (a)

v_s = v_v

(b)

v_s > v_v

(c) Both

v_s

and

v_v

are zero (d)

v_s < v_v

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