A battery-powered toy train moves on a horizontal circular track of radius and takes…

PHYSICS · Multi-part · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A battery-powered toy train moves on a horizontal circular track of radius

0.8\,\text{m}

and takes

20\,\text{s}

to complete one round. (a) Calculate the speed of the train in m/s (take

\pi = 3.14

). (b) State whether the motion of the train is uniform circular motion. Give one reason.