Given that a body with weight W is being pulled by a force P up an incline at an angle a to the horizontal. Write two equations for this system and deduce an expression for the frictional coefficient of the body with impending motion up the incline. Draw diagram of the motion and Label all the variables used.
Given that a body with weight W is being pulled by a force P up an incline at an angle a to the horizontal. Write two equations for this system and deduce an expression for the frictional coefficient of the body with impending motion up the incline. Draw diagram of the motion and Label all the variables used.
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Transcribed Image Text:Question 6
Given that a body with weight W is being pulled by a force P up an incline at an angle a
to the horizontal. Write two equations for this system and deduce an expression for the
frictional coefficient of the body with impending motion up the incline. Draw diagram of
the motion and Label all the variables used.
A.
В.
Figure 8 below shows a rope wrapped around a pulley to support a 800 kg mass.
T1
800 kg
Figure 8
Given that the coefficient of friction between the rope and the pulley is 0.3 , calculate:
the weight of the 800 kg mass.
ii. the tension T when the rope is wrapped 180 degrees around the pulley.
i11. the angle in degrees that the rope must be wrapped for the mass to be supported by a
tension of 500 N.
i.
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