Question

☆BRAINLIEAST QUESTION☆ @ItzHeartRider i need your help

​ If a person complete one and half revolution of circular park of diameter 21m then the displacement covered by the person is *

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Answer 1

Answer:

displacement will be 2r = 21 m

Step-by-step explanation:

as in 1st revolution the displacement will be 0 and other half the displacement will be 2r = 21m

Answer 2

Given :-

A person complete one and half revolution of circular park of diameter 21m .

To Find :-

The Displacement covered by the person .

Used Concepts :-

• The Displacement is the shortest distance between the initial point and the final point .

Solution :-

At First , see the attachment ! It is clear that if the person is starting from Point "A" then after one complete round he will again reach Point "A" and if he completes half round again then , he reach Point "B" . Which Implies ;

${ \Rightarrow \sf { Displacement = Distance \: From \: "A" \: to \: "B" } }$

${ \Rightarrow \sf { Displacement = Diameter \: of \: Circular \: Track \: } }$

${ \Rightarrow \sf { Displacement = 21m } }$

Henceforth, Displacement covered by the Person is the diameter of the Track i.e 21m .