Forces acting on object hanging from rearview mirror

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SUMMARY

The forces acting on a ball hanging from a string attached to a rearview mirror while driving around a circular track at a fixed speed include tension and gravity. The correct answer to the forces acting on the ball is option A: tension and the force of gravity. Friction is not a factor in this scenario as the ball does not come into contact with any surface that would create frictional force. Centripetal force is not a separate force but rather the net force that results from the tension in the string and the gravitational force acting on the ball.

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  • Understanding of Newton's laws of motion
  • Basic knowledge of forces: tension and gravity
  • Familiarity with circular motion concepts
  • Knowledge of the distinction between net force and individual forces
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  • Learn about the role of tension in circular motion
  • Explore the concept of centripetal force and its relation to tension and gravity
  • Investigate real-world applications of forces in vehicles during circular motion
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Physics students, automotive engineers, and anyone interested in understanding the dynamics of forces in circular motion.

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A string is hanging from the rearview mirror of you car and a ball is at the end of this string. Suppose that you drive around a circular track at fixed speed. Which list below gives all the forces that act on the ball?

A) tension and the force of gravity
b) tension force of gravity and centripetal force
c) tension force of gravity and friction
d) tension only
I believe the answer is c, is this correct?
 
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No. Why should there be friction? There is no contact of the ball with anything that has
a different speed.
 

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