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Unformatted text preview: Thevalingam, Donald – Homework 14 – Due: Dec 21 2006, midnight – Inst: Eslami 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. Please take note of the due date of the as- signment. It is due on Thursday, Decembber 21 at midnight. 001 (part 1 of 1) 10 points An elevator starts from rest with a constant upwardaccelerationandmoves1minthefirst 1 . 7 s. A passenger in the elevator is holding a 5 . 5 kg bundle at the end of a vertical cord. The acceleration of gravity is 9 . 8 m / s 2 . What is the tension in the cord as the ele- vator accelerates? Answer in units of N. 002 (part 1 of 3) 10 points A dragster and driver together have mass 881 . 2 kg . The dragster, starting from rest, attains a speed of 26 . 8 m / s in 0 . 54 s . Find the average acceleration of the drag- ster during this time interval. Answer in units of m / s 2 . 003 (part 2 of 3) 10 points What is the size of the average force on the dragster during this time interval? Answer in units of N....
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This note was uploaded on 04/05/2010 for the course PHY 52033 taught by Professor Tleva during the Spring '10 term at University of Texas.
- Spring '10