Question 158: Motion in 1D

Question

A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is

Accepted Answer

Distance covered in one circular loop = 2$$\pi $$r = 2$$ 	imes $$3.14$$ 	imes $$100 = 628 m
Average speed = $${{628} \over {62.8}} = 10$$ m/s
Net displacement in one loop = 0
$$ 	herefore $$ Average velocity = $${0 \over {time}}$$ = 0

Answer

10 m/s, 0

Answer

0, 0

Answer

0, 10 m/s

Answer

10 m/s, 10 m/s.

Motion in 1D

A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is

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