Question

A particle describes a semicircle of radius 14 m. What are its distance and displacement covered?



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Answer 1

Answer:

the distance travelled is πr

ie. 22/7 ×14=44m

displacement will be 2r

ie. 2×14=28m

Answer 2

Distance covered is 44 meter and displacement covered is 28 meter

Solution:

Given that,

A particle describes a semicircle of radius 14 m

Radius = 14 m

Distance covered = circumference of semi circle

Distance covered = $\pi r$

$\text{Distance covered } = \frac{22}{7} \times 14\\\\\text{Distance covered } = 44$

Thus, distance covered is 44 meter

Displacement = 2r

Displacement = 2(14) = 28

Thus displacement covered is 28 meter

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