Question
Eraser and a finger
an eraser is held to blackboardby a finger applying a force. only the coefficient of friction and the mass of the eraser is given........how should i approachthis problem (find the force being applied by the finger)??? thanks.....
Answers
Here is the formula you should plan onusingFf=μsFNForce of Friction = (coefficient of static friction) (forcenormal)Just try to calculate the force normal by multiplying the massof the eraser by any force being applied to it whethere it might begravity orsomething because i dont know hoe the blackboard is setup.
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