Question

A particle is moving In circular path of radius r . the displacement after half a circle would be​

Answer 1

Answer:

Your answer is 2r

Explanation:

As the displacement is the shortest distance between the points therefore the length of distance will be twice that of the radius of circle

Answer 2

Answer:

option (C) =2r

Explanation:

let P be a point on a circle

we know that a straight line joining initial and final point is called DISPLACEMENT

after moving half a circle the position of a point is it's final point

and the place from where P started is it's initial point

then join initial and final position

you will get a straight line passing through the centre of the circle that is known as diameter

diameter =2 times radius =2r (because radius is given that is R)

so correct answer is option (c) 2r