MET 111 Exam 1

Which one of the following is a scalar quantity?

• A) Force
  

• B) Position

• C) Mass
  

• D) Velocity

For vector addition, you have to use ______ law.

• A) Newton’s Second

• B) the arithmetic

• C) Pascal’s

• D) The parallelogram

Resolve F along x and y axes and write it in vector form. F = {___________} N

• A) 80 cos (30°) i – 80 sin (30°) j

• B) 80 sin (30°) i + 80 cos (30°) j

• C) 80 sin (30°) i – 80 cos (30°) j

• D) 80 cos (30°) i + 80 sin (30°) j

Determine the magnitude of the resultant force of (F1 + F2) in N when F1 = {10 i + 20 j} N and F2 = {20 i + 20 j} N.

• A) 30 N

• B) 40 N

• C) 50 N

• D) 60 N

• E) 70 N

What is the moment of the 12 N force about point A (MA)?

• A) 3 N·m

• B) 36 N·m

• C) 12 N·m

• D) (12/3) N·m

• E) 7 N·m

If a force of magnitude F can be applied in four different 2-D configurations (P,Q,R, & S), select the cases resulting in the maximum and minimum torque values on the nut. (Max, Min).

• A) (Q, P)

• B) (R, S)

• C) (P, R)

• D) (Q, S)

Using the CCW direction as positive, the net moment of the two forces about point P is

• A) 10 N • m

• B) 20 N • m

• C) - 20 N • m

• D) 40 N • m

• E) - 40 N • m