4. The section of peripheral nerve in neck is under tension of force F=0.18N due to sudden movement that causes large deformation of the nerve. As shown in the below figure, the nerve consists of two structures: fascicles and epineurium with modulus of elasticity of Efascicles=Ef2=MPa and Eepineurium=Ee 0.5MPA. Note: you can model all three fascicles as one part with the cross section of Afascicles=A=3(t(200x10“)²)= 12 x10*. Use compatibility condition (fascicles and epineurium deform together) b) Determine the deformation of the peripheral nerve (L=50mm). Note: make sure to include the entire solution including the internal forces in fascicles and/or epineurium. d) If the nerve can tolerate strain up to 0.2, determine if the nerve got injured or not due to this sudden movement Peripheral nerve Under tension 50mm Fascicles F 400pm Epineurium 400pm 400um Cross section of peripheral nerve 1000um (Answer: 8 9.4mm )

Determine the possible range for R is the equivalent spring stiffness constant varies from 50 N/m to 500 N/m

Question 7 Find the value of The reaction force at the support A .

A. A car's body has mass 100 slugs. This mass is supported by the car's 4 shock absorbers. The shock absorbers are identical vertical linear springs. Complete a FBD of the car's body (this would not include the car's wheels, axels etc. just the car's body) Each spring is compressed 1.25 inches. Determine the spring "k" value. Answer: 644 lb/inch. Find the compression of each spring if 4 people, each with mass 6 slugs, get into the car, Answer: 1.55" ii. iii.

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In the graph the force versus displacement of a spring is given (the spring is shown in a separate figure--see below). The x-axis range is ±2 cm. The y-axis range is tFs, where Fs = 220 N. How much work does the spring do on the block (the mass "m") when the block moves from x₁ = 7.6 cm to 4.3 cm? W J y F. X -1.5 -0.5 0 10.5 1 1.5 -F How much work does the spring do on the block (the mass "m") when the block moves from x; = 7.6 cm to -7.6 cm? W = Question Help: Read Submit Question m

7. A spring is attached to the floor. When a 125 g mass is placed on top of the spring it compresses by 0.26 m. What is the spring constant of this spring?

A fraternity brother finds an old bungee cord at a garage sale and is contemplating on having a bungee jump event. He measures the spring constant of the cord (assume it is a linear spring) by applying a 500 N force to it and measuring a stretch of 2.5 m. Your job is to help him estimate how tall the jump tower should be. He knows the cord is L = 40 m long, he expects the cord to stretch d for an average 60 kg guy like himself, and at maximum stretch he wants his feet to still be 10 m above the ground. Determine: a. The maximum distance, d, the cord would stretch if a 60 kg brother jumped from tower height, H. b. The force developed in the cord at his max stretch position. c. Calculate the expected tower height. d. The velocity of the brother 40 m below from the topmost level of the tower.

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Find the tension in each segment. 7 ft B 4 ft 50lb 4 ft 5 ft 3 ft 100 lb D Fbc = 47 #, Fba = 83 #, Fcd = 88 # Fbc = 40 #, Fba = 50 #, Fcd = 33 # Fbc = 27 #, Fba = 68 #, Fcd = 18 # ☐ none of the above