13) You are planning on hanging the famous Wookic Lisa in a turbolift. The cable

Question

13) You are planning on hanging the famous Wookic Lisa in a turbolift. The cables you have available can each support 110 N of tension. The painting's mass is 50 kg. In the event of an emergency, the turbolift is designed to brake at a rate of 3g, where g corresponds to Earth gravity. In order to avoid damage to the painting, you want to use enough cables so that no one cable exerts a force greater than 88 N on the painting. On the other hand, Chancellor Palpatine himself, citing the clone army budget, has demanded that you use the minimum number of cables. How many cables do you use? Answer: Submit All Answers

Explanation / Answer

Since the turbolift can hold the acceleration of 3g. And we want to put maximum tension on each cable of 88N to ensure the safety.

we have painting of mass 50 kg now suppose the acceleration is maximum (that is 3g) so the total tension feels by all the cable is going to be 50*3g=50*3*9.8=1470N

as each cable hold the tension of 88N

so the no of minimum cable to ensure the safety under consideration of budget is 1470/88=16.7

so around 17 cable would be enough to ensure the safety and budget

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