{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

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

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

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.

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

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
Ask a homework question - tutors are online