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physicsss
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The problem is stated in the picture. And I drew the FBDs of the top half of the bolt cutter, as shown in the second page:
Setting moment about A to be 0, I obtain -Q(1 in)-FBy*4 in=0
And By= -Q/4 lb
Then setting moment about C to be zero. I obtain
FBy(0.5 in)-20 in(75 lb)=0
Substitute in By, I get the magnitude of Q to be 12000 lb.
UPDATE: PICS
Problem:
http://img368.imageshack.us/img368/7535/1239zw.jpg
FBD's:
http://img368.imageshack.us/img368/431/22cm.jpg Am I correct?
Setting moment about A to be 0, I obtain -Q(1 in)-FBy*4 in=0
And By= -Q/4 lb
Then setting moment about C to be zero. I obtain
FBy(0.5 in)-20 in(75 lb)=0
Substitute in By, I get the magnitude of Q to be 12000 lb.
UPDATE: PICS
Problem:
http://img368.imageshack.us/img368/7535/1239zw.jpg
FBD's:
http://img368.imageshack.us/img368/431/22cm.jpg Am I correct?
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