question_answer

Read the following and answer the questions from [21] to [25].

If an object moves in a circular path with uniform speed, then its motion is called uniform circular motion.

When an object moves along a circular path, its direction of motion keeps changing continuously. The velocity changes due to continuous change in direction and thus motion along a circular path is said to be accelerated.

When a body takes one round of a circular path, then it travels a distance equal to its circumference which is 271 r, where r is the radius of the circular path.

Then, speed of the body moving in a circular path, \[v=2\pi r/t\], where t is the time taken for one round of circular path and n is constant having value 22/7.

An insect moves along a circular path of radius 10 cm with a constant speed. It takes 1 min to move from a point on the path to the diametrically opposite point.

The distance covered by the insect in reaching the diametrically opposite point is

A) 3.14 cm        

B) 31.4 cm

C) 314 cm         

D) 0.314 cm