1. A tightrope walker with mass 50 kg stands on a taught rope such that the rope makes a 10degree angle to the horizontal on each side of the walker. What is the tension in the rope?Optional Answers:1. 1440 N2. 144 N3. 250 N4. 500 N2. One end of a 1-m-long spring is attached to the ceiling. When a 20 kg mass is attached to theother end the spring is stretched to 2.5 m. What is the spring constant?Optional Answers:1. 200 N2. 80 N/m3. 13.3 N/m4. 133 N/m3. The mass is removed from the 1-m-long spring in the previous problem and replaced with a 50 kgmass. What is the new length of the spring?Optional Answers:1. 4.75 m2. 2.5 m3. 3.75 m4. 1 m4. Copper wire with diameter 1 cm and unstretched length 20 m is stretched by a 5000 N tensionforce. By how much is the wire stretched? The Young's modulus of copper is 128x10^9N/m^2Optional Answers:1. 1.0 cm2. 0.5 mm3. 20.01 m4. 2.5 mm

1. given mass of walker m=50kg angle θ=10

1. A tightrope walker with mass 50 kg stands on a taught rope such that the rope makes a 10 degree angle to the horizontal on each side of the walker. What is the tension in the rope? Optional Answers: 1. 1440 N 2. 144 N 3. 250 N 4. 500 N

1. A tightrope walker with mass 50 kg stands on a taught rope such that the rope makes a 10 degree angle to the horizontal on each side of the walker. What is the tension in the rope? Optional Answers: 1. 1440 N 2. 144 N 3. 250 N 4. 500 N

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

1. A tightrope walker with mass 50 kg stands on a taught rope such that the rope makes a 10
degree angle to the horizontal on each side of the walker. What is the tension in the rope?
Optional Answers:
1. 1440 N
2. 144 N
3. 250 N
4. 500 N
2. One end of a 1-m-long spring is attached to the ceiling. When a 20 kg mass is attached to the
other end the spring is stretched to 2.5 m. What is the spring constant?
Optional Answers:
1. 200 N
2. 80 N/m
3. 13.3 N/m
4. 133 N/m
3. The mass is removed from the 1-m-long spring in the previous problem and replaced with a 50 kg
mass. What is the new length of the spring?
Optional Answers:
1. 4.75 m
2. 2.5 m
3. 3.75 m
4. 1 m
4. Copper wire with diameter 1 cm and unstretched length 20 m is stretched by a 5000 N tension
force. By how much is the wire stretched? The Young's modulus of copper is 128x10^9N/m^2
Optional Answers:
1. 1.0 cm
2. 0.5 mm
3. 20.01 m
4. 2.5 mm

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