Question

a person Travels along a circular path of radius 7 if he completes 3/4th of a circular path. find his distance and displacement.​

Answer 1

Answer:

11 and 44

Explanation:

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Answer 2

Answer:

Distance = 33 and Displacement  = 7√2.

Explanation:

Distance = 3/4 of circumference.

                = 3/4 x 2 x 22/7 x 7

                = 33.

Displacement:

Refer the attachment to understand........

From the picture below, it is cler that the line joining starting and ending point is the displacement.

If you clearly observe, the line (displacement) and two other lines form a right angled triangle.

From the triangle, the length of sides is '7' as they both are radii.

Hypotenuse is the line (displacement)

So,

$Displacement = \sqrt{7^{2} + 7^{2} } \\Displacement = \sqrt{2 (7^{2}) }\\Displacement = 7\sqrt{2}$