Question

Boojho was riding in his bicycle along a straight road. He classified the motion 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 reason.

Answer 1

Solution:
(1) Handle bar or seat : The handle of bicycle will always move in rectilinear path because it cannot execute circular or rotatory motion. 
(2) Pedal : The pedals of bicycle will always move circularly around its chain fixing system because they cannot move in forward direction without the whole chain system. 
(3) Wheel : Both rectilinear and circular The wheels of bicycle will move in rectilinear as well as in circular motion because the wheel as a whole will move forward and its point or particles around the rim will execute circular motion.