question 1
According to the study on rigid body statics, more precisely on the moment of a force, check the alternative that completes the sentence below.
When an extended body is subject to the action of non-zero resultant forces, it can acquire _______, _______ or ______ movement simultaneously.
a) translation, rotation, both.
b) application, rotation, relationship.
c) translation, relation, rotation.
d) balance, rotation, action.
e) balance, relationship, both.
question 2
Suppose that to close a door 0.8 meters wide, a person applies a force of 3 N perpendicular to it, as shown in the figure below. Determine the moment of this force with respect to axis O.
a) M = -3.75 N.m
b) M = -2.4 N.m
c) M = -0.27 N.m
d) M = 3.75 N.m
e) M = 2.4 N.m
Watch our video lesson on India's economy and learn the recent history of one of today's fastest growing economies. Understand the economic characteristics of this country and the factors that contribute to its growth.
See in this class where, how and why affirmative action emerged. Also learn about the importance of affirmative action in Brazil and in the present time.
