Practice Problems without Answers

Practice Problems without Answers - A 100-gram steel marble...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: A 100-gram steel marble traveling at 5 m/s [Right] collides with a target sphere at rest. The magnitude of the force between the marble and the sphere is given by 2 2 max 2 F kF t k t where F max = 10.0 N and the constant k = 500 N/s. The force is graphed vs. time at right. The curve forms a semicircle. 1. The collision begins at time t = 0 when the force between the marble on the sphere increases from zero. The collision ends when the force decreases to zero again. How long does the collision last? 2. The impulse imparted to the target sphere is given by the area under the force vs. time curve. What impulse is imparted to the target sphere? (Hints: The horizontal radius of the circle is half of the elapsed time. The vertical radius of the circle is the maximum force. The area of the semicircle could be stated as A = R h R v instead of A = R 2 .) 3. What impulse is imparted to the marble? 4. What is the momentum of the marble before the collision? 5. What is the momentum of the marble after the collision? 6. What is the velocity of the marble after the collision? 7. If the collision is elastic, what is the shortcut equation that links the final velocity of the sphere with the final velocity of the marble?...
View Full Document

This note was uploaded on 02/10/2012 for the course PHYS 123 taught by Professor Phys123 during the Spring '10 term at Buena Vista.

Page1 / 2

Practice Problems without Answers - A 100-gram steel marble...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online