Define distance and displacement. A body covers one complete revolution around a circular park of ci

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7. MOTION

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Define distance and displacement. A body covers one complete revolution around a circular park of circumference $176 \,m$ in $4$ minutes. Find the displacement of the body after $6$ minutes.

Option A

Option B

Option C

Option D

Solution

Distance : It is defined as the actual path followed by a body.

Displacement : : It is defined as the shortest distance between two points.

Given $2 \pi r=176\, m$

Or $\quad r=28 \,m$

After $6$ minutes, the body will be diametrically opposite to its initial position, therefore,

Total displacement after $6$ min $=2 r=2 \times 28$

$=56\, m$

Standard 9

Science

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