A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south. What is the magnitude and direction of the car's resultant displacement?
40 metres, South
50 metres, South
50 metres, North
40 metres, North
2. Multiple Choice
20 seconds
12 pts
Which statement describes a vector?
It has magnitude but no direction
It has direction but no magnitude
It has both direction and magnitude
It has constant magnitude but no direction
3. Multiple Choice
30 seconds
1 pt
In practice A of the figure, What is the magnitude of the resultant displacement?
5 km
8 km
11 km
15 km
4. Multiple Choice
2 minutes
1 pt
In practice A of the figure, what is the direction of the resultant displacement?
63 degrees, South of East
63 degrees, North of West
27 degrees, North of West
27 degrees, South of West
5. Multiple Choice
1.5 minutes
1 pt
In practice B of the figure, which displacement is the horizontal component?
30 km, East
30 km, West
40 km, North
40 km, South
6. Multiple Choice
20 seconds
1 pt
Is this a scalar quantity or a vector quantity? Wind blowing at 20 knots
Scalar
Vector
7. Multiple Choice
20 seconds
1 pt
Is this a scalar quantity or a vector quantity? A deer running 15 meters per second due west
Scalar
Vector
8. Multiple Choice
20 seconds
1 pt
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
20m
40m
0m
-20m
9. Multiple Choice
2 minutes
1 pt
If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?
12 km
19 km, East
31 km
43 km, East
10. Multiple Choice
20 seconds
1 pt
Which of these is not a vector quantity?
displacement
time
velocity
acceleration
11. Multiple Choice
20 seconds
1 pt
Which of the following quantities are vectors?
speed, velocity, acceleration
velocity, acceleration, force
force, acceleration, mass
length, mass, time
12. Multiple Choice
20 seconds
1 pt
The _______ of two or more vectors is the sum of the vectors.
components
scalar
resultant
magnitude
13. Multiple Choice
20 seconds
1 pt
What is the net force? 100 N 230 N <------ --------->
30 N to the right
230 N to the right
130 N to the right
This is a balanced force
14. Multiple Choice
20 seconds
1 pt
What is the SI unit of measurement for force?
lbf
Kilograms
Newtons
m/sec^2
15. Multiple Choice
20 seconds
1 pt
What is the x component of the vector given in the diagram?
77N
92N
120N
60N
16. Multiple Choice
20 seconds
1 pt
What is the y component of the vector given in the diagram?