/bbcswebdav/pid-1942461-dt-content-rid-13778487 1/courses/2017-SPRI-PULLM-ME-212

Question

/bbcswebdav/pid-1942461-dt-content-rid-13778487 1/courses/2017-SPRI-PULLM-ME-212-3068-LEC/Problem 1: A cube bxbxb with mass m lies on the flat, horizontal ground. One side is shown F B b in the figure. The thickness normal to the plane of the figure is b. The cube is subject to earth's gravity and friction coefficient between the cube and the ground is u Impulsive horizontal loading L is applied on the edge B, such that force FC) is applied during the very short time Af During the interval At the force varies from 0 to the maximum value Fmax, and back to 0. AG The inextensible chord is 2: The spool has the mass m and the radius of gyration

Explanation / Answer

1) angular impulse

2) IG (moment of inerial about parallel axes)

3) 2 (doulble)

4) 4   ( four times)

5) 2   (double)

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