AITS mechanics

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There is a thin uniform hemi- .. bowl of mass m and rad R is lying on a smooth smooth horizont surf..F is applied perpendicular to the rim...The inst angular accl of the bowl??
k=F/3mR

a. 20k
b. 10k
c. 40 k
d. 5 k

#Physics #Mechanics

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6 Answers

sriraghav ·2009-04-09 00:50:10

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sriraghav ·2009-04-09 01:10:54

it is perp to the rim... it will be, but i donno how ??

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vector ·2009-04-09 01:19:10

i think d force must be in tangential direction

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sriraghav ·2009-04-09 01:24:38

i dont think so... it was given lyk dis... There will b torque due to forceas COM is somewhere witin d body...

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sriraghav ·2009-04-09 01:25:38

k is given in last line(dat was common in all d ans so i used dat notation)

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Shreyan ·2009-04-09 01:59:43

COM of thin hemispherical shell = R/2
=> torque about COM = (R/2) x F

Moment of inertia of hemisphere about axis through COM and parallel to surface = MR²/5 (not too sure...did it in a hurry)

So, FR/2 = MR²/5 Î±

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AITS mechanics

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