Homework Statement
I need to find the moment about G. Please ignore the question in the image.
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Homework Equations
r X F
The Attempt at a Solution
Moment about G = -(30*800) + (-300*50) + 60 A + 17.32*500 +...
Why does it have to have a negative x component?
Unit Vector BA =< -450, 300, 180>
Unit Vector AB=< 450, -300, -180>
My solution manual is using BA but my teacher is saying it doesn't matter so I am confused. Please explain.. Thanks in advance:)
Homework Statement
knowing the tension in cable AB is 570 N, determine the moment about each of the coordinate axes of the force exerted on the plate at B . This link has a picture...
This equation only works if you have a constant acceleration, but do you have that in this case? What about after you reach terminal velocity?
Are you given a time that it takes to reach the terminal velocity?
no it doesnt:( but yes after if your terminal velocity...theres no time in...
Homework Statement
I have two skydivers umping out of a plane at 5000m . Skydiver A is using extended arms and reaching a terminal velocity of 41.53m/s. Skydiver B jumping 20 second later headdown and reaching a terminal velocity at 90 m/s. The question is to find the time the second diver...
I am confused because when I draw a free body diagram. I draw it through the center of the collar and move the weight vector to the negative y axis. I have the tension force in the first quadrant , I have the P force on the -x axis , and I have the weight force on the negative y axis.
That...
Homework Statement
This is a question from statics course.
Collar A is connected to a 50lb load on a frictionless horizontal rod. Determine magnitude of P to maintain equilibrium when x=4.5.
Im confused on the concept of Tension
I originally got the answer 11.25 lb like the images...
Homework Statement
When is the net flux for a cube 0 and when is it not?
Homework Equations
∫EdA= Q/8.85E-12
The Attempt at a Solution
if you have no test charge then the flux of a cube is zero. but if you have a test charge then the net flux is the charge divided by 8.85E-12...