Answered: hyper car's report claims the car can…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotation Of A Rigid Object About A Fixed Axis

Section: Chapter Questions

Problem 10.89CP: As a result of friction, the angular speed of a whorl changes with time according to ddt=et where 0...

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A hyper car's report claims the car can reach 100 km/hr from rest in 2.8 seconds. We will assume that it has a constant acceleration over that time.

1) Find the car's linear acceleration.

2) Assuming the diameter of a tire is 58 cm, find the angular acceleration of the wheel.

3)Find the number of revolutions the tire makes during this motion, assuming that no slipping occurs during the process.

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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