A model car is tested on two circular tracks of different radii but is programmed to…
PHYSICS · Multi-part · CBSE · Physics · Motion in a Plane · Motion in a Plane
Problem
A model car is tested on two circular tracks of different radii but is programmed to take the same time for one revolution on each track. Track 1 has a radius of 0.80m and Track 2 has a radius of 1.20m. The period of revolution on both tracks is kept at 10s.
(i) Calculate the speed of the car on each track.
(ii) Find the ratio of the speed on Track 2 to that on Track 1.
(iii) If the period is suddenly reduced to 5s on Track 1 while the radius remains unchanged, determine the new speed of the car and state by what factor the speed has changed compared with its original value on Track 1.