Question 1
Find the volume of the tetrahedron spanned by the vectors
u =

,
v =

, and
w =

.
◦ 4 cubic units
◦ 2 cubic units
◦ 5 cubic units
◦ 1 cubic unit
◦ 3 cubic units
Question 2
A force
F of magnitude 6 N acts in the direction of the vector
i + 2
j- 2
k and is applied at the point (0, -1, 4). (Distances are in centimetres.) What is the magnitude of the torque of
F about the point (3, 0, 1)?
◦ 14 N∙ cm
◦ 10

N∙ cm
◦ 15 N∙ cm
◦ 5

N∙ cm
◦ 30

N∙ cm