EXAM_2_–_Fall2011_Practice[1]

50 m our unit vectors are defined such that the

Info iconThis preview shows page 1. Sign up to view the full content.

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

Unformatted text preview: aration between the two bodies is r1, the kinetic energy of the system is B ­C. A) 2, 3, 4 B) 1, 3, 4 C) 2, 4, 5 D) 1, 4, 5 E) 2, 4, 6 PHYS 172 – Hand ­written Portion (30 points total) Name (Print): _______________________________________________________ Signature: __________________________________________________________ PUID: _____________________________________________________________ You will lose points if your explanations are incomplete, if we can’t read your handwriting, or if your work is sloppy. Hand ­Written Problem: Tossing a Ball You toss a ball (mass = 140 g) straight up into the air. The ball leaves your hand with a speed of 10 m/s, at a height of 1.5 meters above the ground, such that the initial position vector is <0,1.5,0> m. Our unit vectors are defined such that the y ­direction points straight up into the air. In this problem you’ll use the energy principle to predict the speed...
View Full Document

This document was uploaded on 03/25/2014 for the course PHYS 172 at Purdue.

Ask a homework question - tutors are online