Pulleys: a) Consider the following problem: Suppose a 500g mass is hung from a spring scale as shown in figure 1. Predict what reading (Newtons) the spring scale will read. What force F must you exert to hold up the mass and how does this compare with the tension in the string and scale reading? F Prediction: b) Suppose instead that a string is placed over the pulley and attached to another 500g mass as shown in the figure. Predict what the readings will be on each of the spring scales shown in the figure. Prediction:
Pulleys: a) Consider the following problem: Suppose a 500g mass is hung from a spring scale as shown in figure 1. Predict what reading (Newtons) the spring scale will read. What force F must you exert to hold up the mass and how does this compare with the tension in the string and scale reading? F Prediction: b) Suppose instead that a string is placed over the pulley and attached to another 500g mass as shown in the figure. Predict what the readings will be on each of the spring scales shown in the figure. Prediction:
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Transcribed Image Text:k) Incline the track so that the block travels down it with constant velocity. Measure the
inclination ("angle of repose") of the track and from this determine the coefficient of
friction, How does this value of µ compare with your previous value?
Pulleys:
a) Consider the following problem: Suppose a 500g mass is hung from a spring scale as
shown in figure 1. Predict what reading (Newtons) the spring scale will read. What force F
must you exert to hold up the mass and how does this compare with the tension in the
string and scale reading?
F
ol m
Prediction:
deid
b) Suppose instead that a string is placed over the pulley and attached to another 500g
mass as shown in the figure. Predict what the readings will be on each of the spring scales
shown in the figure.
F
Prediction:
ni n b o
4
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