12/3/2024 11:27AM
ENGR 103 - Test 4 Questions With Correct
Answers
Magnitude of a Vector: - answer✔The components x,y,z squared and added together under the
square root. Think of pytha, theroem
The magnitude of a unit vector: - answer✔1 (it is always 1, no units)
Dot product yields what? - answer✔A scalar quantity with units of the product of A and B.
Work = Force * distance - answer✔Only use this equation if the force is in the direction of the
displacement,
Scalars do not have ____ - answer✔Units
Cross product - answer✔Vectors of A x B
Right-hand rule (CCW) - answer✔Positive values
Right-hand rule (CW) - answer✔Negative values
I,j,k's (x,y,z) provides what? - answer✔Direction
Cross product will have answers in - answer✔Vectors