Question

6.
A motor vehicle travelled the first third of a
distance s at a speed of v, = 10 kmph, the
second third at a speed of v, = 20 kmph and
the last third at a speed of v, = 60 kmph.
Determine the mean speed of the vehicle over
the entire distance s.​

Answer 1

Answer:

avg speed = 90/3=30....

Explanation:

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