Take a book
Perform a series of holding the book very close to your body all the way until your arm is fully extended and
record how long you can hold the book in this position and how easy or hard it is.
Write a summary of how the torque created by your muscles compared to the torque created by the weight
force of the book changes in each position.
Start with the book close to your body
then further away using your elbow
Then with arm extended fully with the book in the palm of your hand
Sample Solution