hw #5 - BENG109 Bio engineering Statics & Dyna mics Due: W...

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BENG109 Bioengineering Statics & Dynamics Due: Wed, March 4 th , 2009 ( note: this is a change from the schedule published in the syllabus ) Kinematics of Particles (Ch 11) 1. At the instant that a ball is dropped straight down from the top of a 25 m building a second ball is projected upward at an initial velocity of 2 m/s from a window 13 m above the ground. a) Which ball strikes the ground first? b) Find the elapsed time between impacts of the two balls with the ground. 2. A particle moves along a curved track that lies in a horizontal plane. The speed of the particle is a constant value of 0.15 m/s. Find the maximum value (magnitude) of the acceleration the particle experiences as it moves from point a to point g. Kinetics of Particles (Ch 12) 3. A 150kg flat crate rests on the bed of a truck driving down an 8 o incline.The coefficients of friction between the crate and the truck bed are µ s =0.25 and µ k =0.125. a) Find the maximum friction force that the bed can exert on the crate.
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This note was uploaded on 01/25/2011 for the course BENG 109 taught by Professor Ping during the Winter '06 term at UCSD.

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hw #5 - BENG109 Bio engineering Statics & Dyna mics Due: W...

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