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Unformatted text preview: shu (ms45989) – homework 10 – Turner – (58220) 1 This printout should have 12 questions. Multiplechoice questions may continue on the next column or page – find all choices before answering. 001 10.0 points In a certain system of units, 27 . 6 thumbs = 1 meter, 1 pause = 29 . 9 s, and 1 glob = 10 kg. The unit of force in this system is a perk (p). How many kiloperks (kp) are in 64 . 5 N? Answer in units of kp. 002 10.0 points A person weighing 0 . 7 kN rides in an elevator that has a downward acceleration of 1 . 9 m / s 2 . The acceleration of gravity is 9 . 8 m / s 2 . What is the magnitude of the force of the elevator floor on the person? Answer in units of kN. 003 (part 1 of 2) 10.0 points A pulley is massless and frictionless. 3 kg, 2 kg, and 7 kg masses are suspended as in the figure. 4 m 20 . 9 cm ω 2 kg 3 kg 7 kg T 2 T 1 T 3 What is the tension T 1 in the string be tween the two blocks on the lefthand side of the pulley? The acceleration of gravity is 9 . 8 m / s 2 . Answer in units of N. 004 (part 2 of 2) 10.0 points What is the magnitude of the acceleration of the lower lefthand block? Answer in units of m / s 2 ....
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This note was uploaded on 04/07/2010 for the course PHY 58220 taught by Professor Niu during the Spring '09 term at University of Texas.
 Spring '09
 NIU

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