{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# rev7sp10 - TA Tomoyuki Nakayama February 22nd February 23rd...

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

TA: Tomoyuki Nakayama February 22 nd – February 23 rd , 2010 PHY 2048: Physics 1 with Calculus, Spring 2010 Review: Chapter 9.1-9.11 The purpose of this review is to refresh your memory. Physics is a cumulative subject, so make it sure that you understand basic concepts and typical problem solving techniques in previous chapters before moving on to a new chapter. ________________________________________________________________________________ A. Center of Mass 1. Three uniform thin rods form an inverted U as shown on the right, where L = 20 cm. The horizontal rod has mass M = 40g and each vertical rod has mass m = 30 g. Find the center of mass of the system. B. Impulse-Momentum Theorem 1. A 2-kg ball drops vertically onto a floor, hitting the floor with a speed of 20 m/s. It rebounds with a speed of 10 m/s. If the ball is in contact w/ the floor for 0.05s, what is the average force exerted on the ball by the floor? 2. A 100-kg man on a frictionless surface fires a gun and a 0.01-kg bullet is shot at a speed of 500 m/s. What speed does the man acquire? C. Collisions 1. In the figure on the right, block 1 of mass 3-kg hits block 2 of mass 2 kg with a speed of 5m/s. The block 2 is initially at rest.

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 / 2

rev7sp10 - TA Tomoyuki Nakayama February 22nd February 23rd...

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

View Full Document
Ask a homework question - tutors are online