If the sum of the external forces on an object is zero, then the
sum of the external torques on it
must also be zero.
A) True B) False
If the sum of the external forces on an object is zero, then the sum of...
Which of the following conditions are always necessary in order for an object to be in mechanical equilibirum? I. The sum of the external forces on the object must be zero II. The sum of the external torques on the object must be zero III. The object must be at rest A) I B) II C) III D, I, II, and III
Click the answer you think is right The sum of the external forces Zero The net force on the system Read about this Do you know the answer?
When a system is in static equilibrium, the sum of the forces and the sum of the torques are ... constant and none-zero value increasing perpendicular zero decreasing
Which is the correct answer: When you sum the torques on and object and set them equal to zero for an object in equilibrium, the axis about which the torques are calculated... a) must be located at pivot b) must be located at center of mass c) should be located on an outer edge on the object d) can be located anywhere
. If a disk rolls smoothly across a floor, what is the velocity of the point that is in contact with the floor? a) twice the velocity of the center of the disk b) equal to the velocity of the center of the disk c) zero 2. Stress is proportional to strain means that a) stress = constant x strain. b) stress (constant 1) X strain+ constant 2. stress Constant strain d) stress= constant 1 strain constant 2 e) Stress...
An object is at rest. The forces acting on the object _______. are opposite in direction have a vector sum of zero are equal in magnitude are all of the above
The sum of the internal forces on a system always equal to what? Click the answer you think is right. The sum of the external forces Zero The net force on the system Do you know the answer? Read about this
If the net torque on a rotating object is zero, the angular velocity of the object cannot change. True or False? Explain A. True , Explan: _________ B False , Explan: _________ (I know the answer is B, I need help on explanation) Thanks
a. Two forces are acting at a single point on an object. Force A has a magnitude of 8000 N and is directed due West. Force B has a magnitude of 6000 N and is directed at 400 N of E. Determine the magnitude of Force C which must act at the same point so that the object will be in translational equilibrium. b. 40° 5.0 m A 25 kg mass is suspended from the end of a 5.0 m...
Problem 3.1 The figure shows the external forces act- ing on an object in equilibrium. The forces F1 = 32 N and F3 = 50 N. Determine F2 and the angle a. у F 30° X 12° a FZ F