question_answer

Boojho was riding in his bicycle along a straight road. He classified the motions of various parts of the bicycle as (i) rectilinear motion, (ii) circular motion and (iii) both rectilinear as well as circular motion. Can you list one part of the bicycle for each type of motion? Support your answer with reasons.

Answer:

Type of motion	Part of the bicycle that exhibits the motion
(i) Rectilinear motion	Handle of bicycle
(ii) Circular motion	Paddles of bicycle
(iii) Both rectilinear and circular motion	Wheels of bicycle
Reasons:
(i) The handle of a bicycle will always move with rectilinear motion because it cannot do circular motion.
(ii) The paddles of a bicycle will always move with circular motion around its chain fixing system.
(iii) The wheels of bicycle will exhibit both rectilinear as well as circular motion because the wheel will move forward and its points around the rim will execute circular motion.