ENGI 1313 Mechanics I
Course Material Review
Shawn Kenny, Ph.D., P.Eng.
Faculty of Engineering and Applied Science
Memorial University of Newfoundland
The A-frame is being
hoisted into an
Problem 1 (Moment of a couple):
Determine the magnitude and sense of
the couple moment shown in the figure.
Problem 2 (Moment of a couple):
The crossbar wrench is used to remove a lug nut
from the automobile wheel. The mechanic
applies a moment