{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

SOL16 - Thevalingam Donald Homework 16 Due midnight Inst...

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

View Full Document Right Arrow Icon
Thevalingam, Donald – Homework 16 – Due: Jan 22 2007, midnight – Inst: Eslami 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. The due time is Central time. 001 (part 1 oF 1) 10 points During a certain time interval, a constant Force delivers an average power oF 4 watts to an object. IF the object has an average speed oF 2 meters per second and the Force acts in the direction oF motion oF the object, what is the magnitude oF the Force ~ F ? 1. k ~ F k = 4 N 2. k ~ F k = 6 N 3. k ~ F k = 16 N 4. k ~ F k = 2 N correct 5. k ~ F k = 8 N Explanation: The object moves at a constant accelera- tion, so the fnal speed is twice the average speed. P = W t = F d t = F ¯ v , so k ~ F k = P ¯ v = 2 N keywords: 002 (part 1 oF 2) 10 points Assume your mass is 94 kg. The acceleration due to gravity is 9 . 8 m / s 2 . How much work against gravity do you do when you climb a ±ight oF stairs 2 . 1 m high? Correct answer: 1934 . 52 J.
Background image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

SOL16 - Thevalingam Donald Homework 16 Due midnight Inst...

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

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