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Questions and Answers
In the vertical circular motion described, what determines the motion after the initial energy is supplied?
In the vertical circular motion described, what determines the motion after the initial energy is supplied?
- The angular velocity
- The gravitational force (correct)
- The linear velocity
- The tension in the rod
What happens to the linear speed of the object as it moves towards the brim of the circular path?
What happens to the linear speed of the object as it moves towards the brim of the circular path?
- It decreases
- It remains constant
- It increases (correct)
- It oscillates between increasing and decreasing
What is the relationship between the linear speed and the angular speed of the object during vertical circular motion?
What is the relationship between the linear speed and the angular speed of the object during vertical circular motion?
- Linear speed decreases while angular speed increases towards the brim
- They both increase towards the brim
- Linear speed increases while angular speed decreases towards the brim (correct)
- They both decrease towards the brim
What is the primary force responsible for the vertical circular motion in the case of a controlled motion, such as a giant wheel?
What is the primary force responsible for the vertical circular motion in the case of a controlled motion, such as a giant wheel?
In the expression $T \cos \theta = mg$, what does $T$ represent?
In the expression $T \cos \theta = mg$, what does $T$ represent?
What is the relationship between the tension force $(T)$ and the centripetal force $(mr\omega^2)$ in vertical circular motion?
What is the relationship between the tension force $(T)$ and the centripetal force $(mr\omega^2)$ in vertical circular motion?
In the expression $4\pi^2mrn^2 = \frac{mg}{\tan \theta}$, what does $n$ represent?
In the expression $4\pi^2mrn^2 = \frac{mg}{\tan \theta}$, what does $n$ represent?
What is the purpose of the activity suggested in the text, using a funnel and a marble or ball bearing?
What is the purpose of the activity suggested in the text, using a funnel and a marble or ball bearing?
In the case of vertical circular motion controlled only by gravity, what is the primary source of energy?
In the case of vertical circular motion controlled only by gravity, what is the primary source of energy?
What is the physical significance of the angle $\theta$ in the expressions involving tension force and centripetal force?
What is the physical significance of the angle $\theta$ in the expressions involving tension force and centripetal force?
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