Problem Set 7

# Problem Set 7 - ME 240 Fall 2008 Problem Set 7: Due October...

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1 ME 240 Fall 2008 Problem Set 7: Due October 31 Problem 1: The disk rotates about a fixed axis through O with angular velocity ω = 5 rad/sec and angular acceleration α = 3 rad/sec 2 in the direction shown at a certain instant. The small sphere A moves in the circular slot, and at the same instant, β = 30 o , ° = 2 rad/sec, and ° ± = - 4 rad/sec 2 . Determine the absolute velocity and acceleration of A at this instant. Problem 2: The disk rotates in the horizontal plane about a fixed shaft at the origin with constant angular velocity ω = 10 rad/s. The 2-kg slider A moves in a smooth slot in the disk. The spring is unstretched when x = 0 and its constant is k = 400 N/m. Determine the acceleration of A relative to the body-fixed coordinate system when x = 0 . 4 m.

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2 Problem 3: The object consists of the 2-kg slender bar ABC welded to the 3-kg slender bar BDE . The y axis is vertical. At the instant shown, the object has a counterclockwise angular velocity of 5 rad/s.
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## This note was uploaded on 04/08/2010 for the course MECHENG 240 taught by Professor Perkins during the Fall '09 term at University of Michigan.

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Problem Set 7 - ME 240 Fall 2008 Problem Set 7: Due October...

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