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The diagram shows two vectors that point west and north.

Question illustration
A
10 meters
B
50 meters
C
1200 meters
D
2500 meters
2
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A cyclist rides at a constant speed of 4.5 m/s around a curve. If the centripetal acceleration is 29 m/s2, what is the radius of the curve?

A
0.16 m
B
0.70 m
C
6.4 m
D
34 m
3

A boat travels in a straight path that is 25° west of north. Which describes the values of the west and north components of the boat’s displacement?

A
Both components are positive numbers.
B
Both components are negative numbers.
C
The west component is a negative number, and the north component is a positive number.
D
The west component is a positive number, and the north component is a negative number.
4

A box is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. The surface of the ramp is the x-plane.

Question illustration
A
57 N
B
139 N
C
178 N
D
183 N
5

Which is an action that can cause an object to move or change its state of motion?

A
energy
B
force
C
equilibrium
D
inertia
6

The pitcher on a softball team starts a windup to throw a pitch, as shown.Note: In softball, the ball is pitched underhand in a circular motion in the direction of the arrow.

Question illustration
A
W
B
X
C
Y
D
Z
7

Rahul wants to change the motion map shown so that it shows uniform circular motion.

Question illustration
A
He should change the length of each vector that points toward the center so that it is the same length as the vector pointing tangent to the circle at that point.
B
He should change the lengths of the vectors that point tangent to the circle so that each is the same length.
C
He should change the direction of the vectors that are tangent to the circle so that each points away from the center of the circle.
D
He should change the direction of the vectors that are tangent to the circle so that each points toward the center of the circle.
8

In the equation for centripetal force, which expression represents the centripetal acceleration of the object?

A
mv2
B
StartFraction m over r EndFraction
Option B
C
StartFraction v Superscript 2 Baseline over r EndFraction
Option C
D
StartFraction m times v Superscript 2 Baseline over r EndFraction
Option D
9

An object moving in a circle is represented by the motion map.

Question illustration
A
W
B
X
C
Y
D
Z
10

A bicycle tire has a radius of 0.23 m. The tire spins at a constant speed with a centripetal acceleration of 42 m/s2.

A
3.1 m/s
B
6.5 m/s
C
9.7 m/s
D
14 m/s
11

A box is being pulled by two ropes. Eduardo pulls to the left with a force of 500 N, and Clara pulls to the right with a force of 200 N. The box moves because of the two forces applied to it. Leon records the forces and direction of the forces acting on the box in his lab notebook.

Question illustration
A
Tension by Eduardo
B
Tension by Clara
C
Kinetic friction
D
Gravity
12

A push broom is being pushed down across a rough floor. The broom moves to the right.What is the correct free body diagram of the broom?

Question illustration
A
Option
B
Option
C
Option
D
Option
13

A car drives 16 miles south and then 12 miles west. What is the magnitude of the car’s displacement?

A
4 miles
B
16 miles
C
20 miles
D
28 miles
14

Jin walked 4 km on a straight path to get to the sandwich shop. He traveled 30° south of east.

A
-3.5 km
B
-2 km
C
2 km
D
3.5 km
15

An object is represented by the dot on the motion map.

Question illustration
A
a car driving over the top of a hill
B
a ball on a string that stopped at the top of a vertical loop
C
a roller coaster car at the top of a vertical loop of track
D
a bug on the top of a rolling hula hoop

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