A small car moves with constant speed around a horizontal circular track of radius

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

A small car moves with constant speed around a horizontal circular track of radius 80 m80\,\text{m}. Its speed is 20 m s−120\,\text{m\,s}^{-1}. (a) Calculate the time it takes the car to complete one full revolution of the track. (b) Determine the number of complete revolutions the car makes in 3.0 min3.0\,\text{min}. (c) Find the total angular displacement, in radians, covered by the car during this 3.0 min3.0\,\text{min} interval. Show all working and state the appropriate units with final answers.

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