1. Predict the minimum height from which the ball should be released on side A t

Question

1. Predict the minimum height from which the ball should be released on side A to be able to reach the end of the track on side B. What was the reasing used for your prediction?

2. What is the minimum height from which the ball should be released as to complete a loop without losing contact with the track? If the loss of mechanical energy can be ingnored, can the ball be released from side B from exactly the same height as the heigh of the loop (Hint: What would it mean about the speed of the ball at the highest point of the loop and what will it mean for the centripetal acceleration necessary for making the ball go in a circle?)?

3. What are the possible sources of loss of total mechanical energy?

4. Describe an interesting feature of this demonstration.

5. Describe four other situations from your every day experience where mechanical energy is approximately conserved because work done by the non-conservative forces is ignorable. Don't forget to mention which non-conservative force is doing negligible work ion each case you cite.

Explanation / Answer

1) Minimum height should be height of the loop, or should be equal to 2r , where r is the radius of the loop.

2) minimum height should be more than or equal to the 2r.

3) frictional force is the possible source of the loss of total mechanical energy.

4) It is the type of ride

5) Potential energy

   Gravity is conservative, friction is non-conservative

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.