WorksheetsUntitled Quiz
Total questions: 5
Worksheet time: 2mins
A position vector, rPQ, is obtained by
Coordinates of Q minus coordinates of P
Coordinates of P minus coordinates of Q
Coordinates of Q minus coordinates of the origin
Coordinates of the origin minus coordinates of P
A force of magnitude F, directed along a unit vector U, is given by F = ______
F + U
F (U)
U / F
F / U
. P and Q are two points in a 3-D space. How are the position vectors rPQ and rQP related?
rPQ = 2 rQP
rPQ = - rQP
rPQ = rQP
rPQ = 1/rQP
If F and r are force vector and position vectors, respectively, in SI units, what are the units of the expression (r * (F / F)) ?
The expression is algebraically illegal
Newton - Meter
Newton
Meter
Two points in 3 – D space have coordinates of P (1, 2, 3) and Q (4, 5, 6) meters. The position vector rQP is given by
{4 i + 5 j + 6 k} m
{5 i + 7 j + 9 k} m
{- 3 i – 3 j – 3 k} m
{3 i + 3 j + 3 k} m
