can anybody solve those questions for me please?? 1. The following measurements

Question

can anybody solve those questions for me please??

1. The following measurements are made on the forearm: [Assume all relevant angles are 90° and the arm is in static equilibriuml 5N 1N a) What is the magnitude and direction of the force in the elbow joint?( Hint: the sum of the forces must be zero) b) The 5N in the picture is applied to the bicep to a point is 5cm from the elbow. What is the torque due to the bicep muscle? (write an equation and show your work) Shown below is the free-body diagram for the case where the forearm is horizontal and the biceps muscle is acting vertically. The arm is in equilibrium. 2. FBcaps Ebow Hand 30 om Mam 9 a) If the mass of the arm is 6kg, what is FBiceps? What fore (ndude directio) dos he o joint have to cet on te a

Explanation / Answer

2) a) making net torque 0,

3 x Fbiceps = 30 x 6 x 9.8 =>  Fbiceps = 588 N

b) elbow joint force + mg = 588

=> elbow joint force = 588 - (6 x 9.8) = 529.2 N (downwards)

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