For the following problem, please refer to the Biceps Tension Everday Example in Chapter 49. Remember to show work and add the unit of measure!

Calculate the mechanical advantage of the forearm in the previous everyday example on this page. 

Enter your answer and work into the empty box using only two significant figures: ______________

For the following problem, please refer to the Reinforcement Activity in Chapter 55. 

Enter your values in the boxes, using just two significant figures. Please show your work! Remember to add the unit of measure! 
 
If you hold your 2.3 ft long arm out horizontally with a 12 lb weight in your hand, what is the torque about your shoulder joint caused by the weight? 

Reinforcement Activity

After you have an answer, from question #2, convert from ftlbs to Nm to by using conversion factors between Newtons and pounds and feet and meters.

Remember, just use two significant figures.

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