Lifting heavy objects close to the body is important to protect the lower back because: Select one:
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Question:
Lifting heavy objects close to the body is important to protect the lower back because:
Select one:
a. the moment arm for the weight of the object decreases
b. the torque created by gravity increases
c. the back muscles angle of pull is improved
d. the arms are used more
e. it equalizes forces on both sides of the body
Related Book For
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
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