A runner moves along the outer edge of a circular track of radius
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A runner moves along the outer edge of a circular track of radius 50m. Starting from point A, the runner covers an arc length of 314m to reach point B.
(i) Find, in radians, the measure of the angle subtended at the centre by arc AB. (Use the exact value of π in your answer.)
(ii) Convert the angle obtained in part (i) to degrees, expressing the answer correct to the nearest whole number.
(iii) How much farther (in both radians and degrees) must the runner travel from point B to reach point A again and complete one full revolution?