exam 2 2010

# exam 2 2010 - Name P2601(Spring 2010 Individual Exam 2...

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

Name:______________________________________________ P2601 (Spring, 2010) Individual Exam 2 Possibly Useful Formulas are on the last page. The best way to come up with a good idea is to come up with lots of ideas. –Linus Pauling, winner of two unshared Nobel prizes. The proper function of a lecture is not to give the student all the information he needs but to arouse his enthusiasm so that he will gather knowledge himself. -J.J. Thomson I. (54 pts) For the multiple choice only: No explanation is needed if your answer is correct. Justify your answer with well chosen words or a formula and you may receive partial credit even for a wrong answer---but use your time wisely. 1. ___ A rock attached to a string swings freely in a counter-clockwise vertical circle. (It touches nothing but the string which is attached to a fixed pivot.) Which free body diagram could correctly best describe the force(s) on the rock when it is passing through its lowest point? 2. ____A ball of mass M moves in a circular path on a horizontal, frictionless surface. It is attached to a light string that passes through a hole in the center of the table. If the string is pulled down somewhat, thereby reducing the radius of the path of the ball, what happens to the ball? a) It increases its linear speed because the linear momentum of the ball is conserved.

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

exam 2 2010 - Name P2601(Spring 2010 Individual Exam 2...

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

View Full Document
Ask a homework question - tutors are online