Problem 8.58 Problem 8.58 Tap image to zoom Part A What is the tension in the ca

Question

Problem 8.58 Problem 8.58 Tap image to zoom Part A What is the tension in the cable? Neglect the gravity. Express your answer to two significant figures and include the appropriate units. T = SubmitGive Up Part B How much does the cable stretch? Young modulus for steel is 20 Part A What is the tension in the cable? Neglect the gravity. Express your answer to two significant figures and include the appropriate units. T = SubmitGive Up Part A What is the tension in the cable? Neglect the gravity. Express your answer to two significant figures and include the appropriate units. T = SubmitGive Up T = T = SubmitGive Up Part B How much does the cable stretch? Young modulus for steel is 20 Part B How much does the cable stretch? Young modulus for steel is 20 T =

Explanation / Answer

A) Tension =centripetal force
F= (mv^2)/r= 7.3x(29^2)/1.2= 5120 N
B) Substitute the value of force in the following equation: (p = youngs modulus)

A= pi/4*d2 = 7.065 *10-6m
delta(L)=(FxL)/(p x A) = = 5120 *1.2/ (20*1010* 7.065*10-6) = 4.348*10-3 m

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