7. 0 /1 points | Previous Answers SerPSE8 11.P.063. My Notes | 7. 0 /1 points |

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7.0/1 points |  Previous AnswersSerPSE8 11.P.063.My Notes  |
7.0/1 points |  Previous AnswersSerPSE8 11.P.063.My Notes  | Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used Question Part Points Submissions Used

Someone has already asked this question on chegg and the answer is wrong so please do not copy their answer. Thanks Question Part Points Submissions Used A solid cube of side 2a and mass M is sliding on a frictionless surface with uniform velocity v rightarrow , as shown in Figure a. It hits a small obstacle at the end of the table that causes the cube to tilt as shown in Figure b. Find the minimum value of the magnitude of v rightarrow such that the cube tips over and falls off the table. Note: The cube undergoes an inelastic collision at the edge. (Use the following as necessary: M, a, and g.)

Explanation / Answer

I = (1/6)*M*(2a)^2 + M*2*a^2 = M*a^2*((2/3)+2) = (8/3)*M*a^2

KEt = 0.5*M*V^2

KEr = 0.5*I*W^2 = 0.5*(8/3)*M*a^2*W^2

KEt = KEr

0.5*M*V^2 = 0.5*(8/3)*M*a^2*W^2

V = a*W*sqrt(8/3)

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