1.
Make a sketch to show the vectors for an airplane traveling at 220 miles per hour at an angle of 31° from the wind.
A.
B.
C.
D.
Hint
2.
What is the magnitude of the resultant of a 100-newton force along the
x
-axis and a 150-newton force at an angle of 40° to each other?
A.
180.28 N
B.
162.99 N
C.
125 N
D.
235.54 N
Hint
3.
Find the direction of the resultant vector for the diagram.
A.
60°
B.
18.4°
C.
55°
D.
71.6°
Hint
4.
Find the magnitude of the resultant vector that is the sum of the two vectors shown.
A.
165.2
B.
80.1
C.
124
D.
59
Hint
5.
If José pushes a cart horizontally, exerting a horizontal force of 0.5 N up a 45° incline so that the cart moves 3 m, how much work has José done on the cart? A joule (J) is the SI unit for work or energy. 1 J = 1 N ˇ 1 m
A.
J
B.
J
C.
J
D.
J
Hint