What would be the displacement of a particle moving in a circular path of radius r after adisplacement of half a circle?a. 2πrb. πrc. 2rd. Zero
Question
What would be the displacement of a particle moving in a circular path of radius r after adisplacement of half a circle?a. 2πrb. πrc. 2rd. Zero
Solution
The displacement of a particle moving in a circular path is the shortest distance between the initial and final position of the particle.
In this case, the particle is moving half a circle. So, the initial and final positions of the particle are at opposite ends of a diameter of the circle.
The length of a diameter of a circle is twice the radius of the circle. Therefore, the displacement of the particle after moving half a circle is 2r.
So, the correct answer is c. 2r.
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