In Figure 1-7, the biceps is acting on the forearm. What is the force of the biceps, FB, given the following: moment arm of the biceps, d = 0.02 m and torque due to the biceps, TM = -5 Nm?
a. -0.1 N
b. 1,250 N
c. 5 N
d. -250 N
ANS: D
Because T = (F) (MA) therefore, F = T/MA: (-)5 Nm/0.02 m = (-)250 N. The negative sign is
used to show direction of the force. Due to the small moment arm, the force necessary to produce
(-)5 Nm of torque is quite large.
You might also like to view...
Red sharps containers are where any blood products, syringes, needles, glass, or broken glass waste products are thrown away
Indicate whether the statement is true or false
What is the primary purpose of grounding all electrical equipment used in the hospital setting?
a. To prevent the dangerous buildup of voltage in the equipment b. To make the equipment more secure and less likely to break down c. To avoid excessive energy costs d. To convert electrical power from DC to AC
List the five categories of work-related injuries
What will be an ideal response?
The basic functional unit cell of the nervous system, which sends and receives electrical signals throughout the body, is the:
A. ganglion B. synapse C. axon D. neuron