Determine the equivalent mass and stiffness of the system (Figure 2.1).

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Weight=255 Can you also explain in detail thank you

A 68.4 kg man stands on his toes by exerting an upward force through the Achilles tendon, as shown in the figure. Part (a)  In units of newtons, what is the magnitude of the force through the Achilles tendon if he stands on one foot?  Part (b)  Calculate the force in units of newtons at the pivot of the simplified lever system shown. That force is representative of forces in the ankle joint.

B1

Q3. As shown on the right in image below, the force Facting on the box varies with displacement s, and the coefficient in the image, C = 14. Determine the work done by force Fto the box when the box has displaced s = 1.9 m. Please pay attention: the numbers may change since they are randomized. Negative sign must be included if the work done is negative. Your answer must include 2 places after the decimal point, and proper SI unit. F (N) F 5 3 S 4 C s (m) 1 2

7. The arrangement in the drawing shows a block (mass = 14.0 kg) that is held in position on a frictionless incline by a cord (length = 0.582 m). The mass per unit length of the cord is 1.30 x 10-2 kg/m, so the mass of the cord is negligible compared to the mass of the block. The cord is being vibrated at a frequency of 166 Hz (vibration source not shown in the drawing). What is the smallest angle 0 between 15.0° and 90.0° at which a standing wave exists on the cord?

Needs Complete typed solution with 100 % accuracy.

2. Find the Force reading on the spring scale. Show all your work and box the answers. Step 1 is to draw a Free Body Diagram and Step 2 is to sum the Forces in the X& Y. Use the diagram included. N is the Normal Force, Tis the Tension and Wis the Weight. Spring Scale प्री- .T 100 Ib 20° W N

Write an expression for the equivalent stiffness for the combination of springs shown in Figure Q1. k M k