RIO SOLADO - PHY 111 Exam Questions and
Answers
Question 1
Examine the velocity vs. time graph below. What direction is the object moving at t =
4.0 s?
Correct Answer
Backwards
Question 2
Convert 35.0 mph to m/s. (1 mi = 1.6 km)
Correct Answer
15.6 m/s
Page 1 of 104
,Question 3
A student throws a ball. Which of the following force vector diagrams shows all of the
forces acting on the ball when the ball has reached its maximum height? Air
resistance is negligible.
Correct Answer
Question 4
A student moves 3.0 m south, 6.0 m east, and 1.0 m north. What is the angle of the
displacement?
Correct Answer
-18°
Question 5
A ball is attached to the center of the ceiling inside of a van moving at constant
speed. If the ball is released, where will the ball land?
Correct Answer
Directly below its starting position (middle of the van)
Page 2 of 104
,Question 6
Examine the position vs. time graph below. What is the velocity of the object at t = 5.0
s?
Correct Answer
-5 m/s
Question 7
A car accelerates from rest at a rate of 20 m/s2. How far will the car have traveled by
the time it reaches a speed of 30 m/s?
Correct Answer
22.5 m
Question 8
What is the horsepower required for a 1200 kg car to travel from rest to a speed of 20
m/s in 7.0 seconds? (746 W = 1 hp)
Correct Answer
46 hp
Page 3 of 104
, Question 9
The grid below shows the path a student takes through a campus area. What is the
approximate direction of the student's overall displacement? (Be careful—this is not a
position vs. time graph.)
Correct Answer
56°
Question 10
A student runs off of a diving platform with a speed of 2.5 m/s and hits the water 1.8
seconds later. What is the student's horizontal distance from the platform when she
hits the water? Air resistance is negligible.
Correct Answer
4.5 m
Question 11
A jogger starts at a position of 4.0 m and moves forwards at a constant rate ending at
a position of 12.0 m at a time 4.0 s later. What is the speed of the jogger?
Correct Answer
2.0 m/s
Page 4 of 104
Answers
Question 1
Examine the velocity vs. time graph below. What direction is the object moving at t =
4.0 s?
Correct Answer
Backwards
Question 2
Convert 35.0 mph to m/s. (1 mi = 1.6 km)
Correct Answer
15.6 m/s
Page 1 of 104
,Question 3
A student throws a ball. Which of the following force vector diagrams shows all of the
forces acting on the ball when the ball has reached its maximum height? Air
resistance is negligible.
Correct Answer
Question 4
A student moves 3.0 m south, 6.0 m east, and 1.0 m north. What is the angle of the
displacement?
Correct Answer
-18°
Question 5
A ball is attached to the center of the ceiling inside of a van moving at constant
speed. If the ball is released, where will the ball land?
Correct Answer
Directly below its starting position (middle of the van)
Page 2 of 104
,Question 6
Examine the position vs. time graph below. What is the velocity of the object at t = 5.0
s?
Correct Answer
-5 m/s
Question 7
A car accelerates from rest at a rate of 20 m/s2. How far will the car have traveled by
the time it reaches a speed of 30 m/s?
Correct Answer
22.5 m
Question 8
What is the horsepower required for a 1200 kg car to travel from rest to a speed of 20
m/s in 7.0 seconds? (746 W = 1 hp)
Correct Answer
46 hp
Page 3 of 104
, Question 9
The grid below shows the path a student takes through a campus area. What is the
approximate direction of the student's overall displacement? (Be careful—this is not a
position vs. time graph.)
Correct Answer
56°
Question 10
A student runs off of a diving platform with a speed of 2.5 m/s and hits the water 1.8
seconds later. What is the student's horizontal distance from the platform when she
hits the water? Air resistance is negligible.
Correct Answer
4.5 m
Question 11
A jogger starts at a position of 4.0 m and moves forwards at a constant rate ending at
a position of 12.0 m at a time 4.0 s later. What is the speed of the jogger?
Correct Answer
2.0 m/s
Page 4 of 104
