Mech 210 midtemr 1

Question 1

What is equilibrium state?

Answer 1

State which forces are balanced no acc

Question 2

Force transmissibility

Answer 2

Property of force to be relocated freely long line of action for a rigidbody non déformable solide as long as it stays on the solid
the point of application of a force can be moved anywhere along its line of action without changing the external reaction forces on a rigid body

Question 3

Moment

Answer 3

measure of a force’s tendency to cause a body to rotate about a reference point. Right hand rule M = Fd

Question 4

Couple moment

Answer 4

The tendency of two parallel forces with the same magnitude but opposite direction separated by distance to cause rotation in object

Question 5

What forces dont create rotaiton

Answer 5

concurrent at o, parallel

Question 6

Wrench resultant

Answer 6

A wrench resultant is a force and couple system in which the force and couple are parallel and represent all the forces and moments in the systems

Question 7

Why does a link have two forces alligned with it

Answer 7

for the moments to cancel out, the forces must align on the axis from a to b for static equilibrium to be possible

Question 8

What is statically indeterminate

Answer 8

too many unknowns for the amount of equations avail. (3 for 2d, 6 for 3d)