Asked by adam
A wooden box, with a mass of 22 kg, is pulled at a constant
speed with a rope that makes an angle of 25° with the
wooden floor. What is the tension in the rope?
speed with a rope that makes an angle of 25° with the
wooden floor. What is the tension in the rope?
Answers
Answered by
bobpursley
constant speed?
friction=tension*cos25
but friction=mu(mg-tension*sin25)
mu(mg-tension*sin25)=tension*cos25
solve for tension...
tension(cos25-mu*sin25)= -mu*mg
so you need to know the coefficent of friction mu to solve this.
friction=tension*cos25
but friction=mu(mg-tension*sin25)
mu(mg-tension*sin25)=tension*cos25
solve for tension...
tension(cos25-mu*sin25)= -mu*mg
so you need to know the coefficent of friction mu to solve this.
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