PHY 131 EXAM 4 | QUESTIONS AND
ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTIONS
Which moves faster in m/s on a merry go round: a horse on the inside or a house on the outside near the outer
rail?
a. inside
b. both move at the same speed in m/s
c. outside - ANSWER>c
A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both
scales. the reading on each scale is
a. 800N
b. none of these
c. 400 N
d. 1600 N
e. 200 N - ANSWER>c
,A car moving at 50 km/hr skids 20 m with locked breaks. How far will the car skid with locked breaks if it were
traveling at 150 km/hr?
a. 60 m
b. 180 m
c. 20 m
d. 120 m
e. 90 m - ANSWER>b
A truck is moving at constant velocity. Inside the storage compartment, a rock is dropped from the midpoint the
ceiling and strikes the floor below. The rock hits the floor
behind the midpoint of the ceiling.
a. exactly below the midpoint of the ceiling.
b. ahead of the midpoint of the ceiling.
c. none of these
d. More information is needed to solve this problem. - ANSWER>b
, After the best physics test ever you decided to drive around the 440 beltline to enjoy your greatness. You make one
rotation around the 30 mile beltline in 30 minutes. What is your average velocity?
a. 30 miles/hour.
b. 60 miles/hour.
c. 30 m/s.
d. 0 miles/hour.
e. None of these choices are correct. - ANSWER>d
A TV set is pushed a distance of 2 m with a force of 20 N. How much work is done on the set?
a. 800J
b. 10J
c. 40J
d. 2J
e. 20J - ANSWER>c
A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the force
required to keep the puck sliding at constant velocity is
ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTIONS
Which moves faster in m/s on a merry go round: a horse on the inside or a house on the outside near the outer
rail?
a. inside
b. both move at the same speed in m/s
c. outside - ANSWER>c
A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both
scales. the reading on each scale is
a. 800N
b. none of these
c. 400 N
d. 1600 N
e. 200 N - ANSWER>c
,A car moving at 50 km/hr skids 20 m with locked breaks. How far will the car skid with locked breaks if it were
traveling at 150 km/hr?
a. 60 m
b. 180 m
c. 20 m
d. 120 m
e. 90 m - ANSWER>b
A truck is moving at constant velocity. Inside the storage compartment, a rock is dropped from the midpoint the
ceiling and strikes the floor below. The rock hits the floor
behind the midpoint of the ceiling.
a. exactly below the midpoint of the ceiling.
b. ahead of the midpoint of the ceiling.
c. none of these
d. More information is needed to solve this problem. - ANSWER>b
, After the best physics test ever you decided to drive around the 440 beltline to enjoy your greatness. You make one
rotation around the 30 mile beltline in 30 minutes. What is your average velocity?
a. 30 miles/hour.
b. 60 miles/hour.
c. 30 m/s.
d. 0 miles/hour.
e. None of these choices are correct. - ANSWER>d
A TV set is pushed a distance of 2 m with a force of 20 N. How much work is done on the set?
a. 800J
b. 10J
c. 40J
d. 2J
e. 20J - ANSWER>c
A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the force
required to keep the puck sliding at constant velocity is
