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Exercise 11.19 A 3.00-m-long. 280-N. uniform rod at the zoo is held in a horizon

ID: 1259635 • Letter: E

Question

Exercise 11.19 A 3.00-m-long. 280-N. uniform rod at the zoo is held in a horizontal position by two ropes at its ends (the figure (Figure 1)). The left rope makes an angle of 150 degree with the rod and the right rope makes an angle theta with the horizontal. A 91-N howler monkey (Alouatta seniculus) hangs motionless 0.50 m from the right end of the rod as he carefully studies you. Part A Calculate the tension in the left rope. Express your answer using two significant figures. TL= 310 N Part B Calculate the tension in the right rope. Express your answer using two significant figures. Part C Calculate the angle theta.

Explanation / Answer

Let

L = length of the rod = 3 m
W = weight of the rod = 280 N
w = weight of the monkey = 91 N
d? = distance of the monkey to the right end of the rod = 2.5 m
d? = distance of the monkey to the right end of the rod = 0.5 m
? = angle of the left rope = 150