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Hey guys, how would i do this question using the 3 force rule? I can do it through calculating the moments analytically but not too sure how to do it using the above rule. If anyone can help out, I'd appreciate it. The question is: "A mass M is supported at C to produce a force of 10kN at...

I need help with the entire question (a). If you can't see the diagram clearly, it's a brake pedal with an effort force inclined at 45 degrees. It's asking me to find: (i) the velocity ratio (ii) the mechanical advantage if efficiency is 75% (iii) the force p (inclined at 45 degrees)...