Question

Q3.a boy moves in the given semi circle from A to B via point D and C.If radius of the semi circle is 7m then Distance and Displacement of the boy are *

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Answer 1

Displacement is 14, Distance is 36

Explanation:

displacement is the shortest distance covered from initial point to the final place so,

Here the displacement is the diameter = 7 + 7 so 14....

And distance is the perimeter of the semicircle which = πr+d

= 22/7 *7 +14

7 and 7 gets cancel so add 22 and 14....

so the ans is 36