   Chapter 7, Problem 13CQ

Chapter
Section
Textbook Problem

An object executes circular motion with constant speed whenever a net force of constant magnitude acts perpendicular to the velocity. What happens to the speed if the force is not perpendicular to the velocity?

To determine
what happens to the speed of the objects executes circular motion if the force is not perpendicular to the velocity.

Explanation

An object will go through circular motion with a constant speed when a force of constant magnitude acts perpendicular to the velocity.

If the force is not acting perpendicular to the velocity,

Let the force F is at an angle θ , the component Fsinθ will be perpendicular to the velocity and the component Fcosθ will be parallel to the velocity

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