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Grade: 9
        A cube of mass m and height H slides with a speed v. It strikes the obstacle of height h=H/4. Find the speed of the CM of the cube just after the collision. 


Ans:-51/2v/6




7 years ago

Answers : (1)

Chetan Mandayam Nayakar
312 Points
							

L=mvH/4=Iw,I=mH2((1/6 + 1/16 + 1/4)=23mH2/48,w=mvH/4I=12v/23H, Vcm=w*H√5/4=3√5v/23

7 years ago
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