HW2-S07 - 300 feet. Billy Bobs car can accelerate at a...

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AEM 264 Homework #2 1/19/07 Due: Wednesday, 1/24/07 Correct units and a reasonable number of significant digits (3 or 4) are required for every problem solved in every homework assignment in this section of AEM 264. 1. A velocity-time profile commonly used with industrial robots is shown in the figure below. Assume that the initial position is zero. Determine a) maximum and minimum acceleration b) positions at times t = 0.30 sec, 0.60 sec, 0.90 sec, and 1.20 sec c) Sketch the acceleration vs. time plot and the position vs. time plot 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 Time, sec Velocity, m/sec 2. Billy Bob wants to be the “stop sign” king in his home town. The distance between stop signs is
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Unformatted text preview: 300 feet. Billy Bobs car can accelerate at a constant a 1 =+7.5 ft/sec 2 , and can decelerate at a 2 = -20.5 ft/sec 2 . He starts at one stop sign with zero velocity and stops at the second stop sign with zero velocity. What is Billy Bobs maximum speed during this travel? How long does it take Billy Bob to travel from one stop sign to another? Sketch scaled acceleration vs. time, velocity vs. time, and position vs. time curves. 3. Problem #2.2.27 from Dynamics by Tongue and Sheppard 4. Problem #2.2.35 from Dynamics by Tongue and Sheppard...
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This note was uploaded on 04/08/2008 for the course AEM 264 taught by Professor Parkermcinerny during the Spring '08 term at Alabama.

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