Question

a particle covers a distance along a circular path equal to the radius of the circle. The angle through which it is rotated about centre is

Answer 1

Answer:

Explanation:

the distance will be equal to r/2 as the hypotnuse is r sq +r sq as it is half of radius so angle will be half of 90 degree as hypotnuse came whan one radi is perpendicular to other

hoping its helpful!!!

Answer 2

Answer:

(180/π)°

Explanation:

Since,length of arc=radius of circle×theta

If length of arc=radius of circle

then,

1 radian=theta

1 radian=(180/π)°