1|Page
WGU AYN1: D689 Task 1 2026-2027 BANK QUESTIONS WITH
DETAILED VERIFIED ANSWERS EXAM QUESTIONS WILL
COME FROM HERE (100% CORRECT ANSWERS A+ GRADED
Question 1
A textbook rests on a car seat as the car travels forward at a constant
65 miles per hour on a straight, flat highway. The driver suddenly slams
on the brakes, causing the car to rapidly decelerate. The textbook slides
forward off the seat. Which of the following statements best explains
why this happens, according to Newton's first law?
A) A forward force from the braking action is applied to the textbook,
pushing it off the seat.
B) The textbook's inertia keeps it moving forward at a constant velocity
while the car decelerates around it.
C) The force of friction between the textbook and the seat instantly
becomes zero during braking.
D) The force of gravity on the textbook decreases as the car slows
down.
Answer: B
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Explanation: Newton's first law states that an object in motion
continues in motion with the same velocity (same speed and same
direction) unless a net external force acts on it. The textbook was
moving forward at 65 mph. When the brakes are applied, friction and
other forces decelerate the car, but those forces act primarily on the
car, not directly on the book. The book, due to its inertia, continues
moving forward at 65 mph relative to the ground. From the perspective
of someone in the car, the book slides forward because the car slows
down beneath it. Option A is incorrect; no forward force pushes the
book. The braking force acts on the car, not the book, in the forward
direction. The book's continued forward motion appears as sliding
relative to the decelerating car. Option C is incorrect; friction between
the book and seat may be insufficient to decelerate the book at the
same rate as the car, but it does not become zero. Option D is
incorrect; braking does not change the gravitational force on the book.
Gravity acts downward and is unrelated to the horizontal deceleration.
Question 2
An astronaut is floating motionless inside the International Space
Station, orbiting Earth. She gently pushes against the wall of the
module and begins to drift across the cabin at a constant velocity. After
she stops pushing and is no longer in contact with the wall, which
statement correctly describes her motion?
A) She will gradually slow down and stop due to the lack of gravity in
space.
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B) She will move at a constant velocity in a straight line until an
unbalanced force acts on her.
C) She will eventually curve toward the Earth-facing side of the station
due to Earth's gravity.
D) She will accelerate continuously because the initial push continues
to act on her for a short time.
Answer: B
Explanation: This is a direct application of Newton's first law in a
microgravity environment. While the astronaut and the station are in
orbit, they are in continuous free-fall around Earth, but relative to the
station's interior, she experiences apparent weightlessness. The push
from the wall is a force that changes her velocity from zero to some
constant value. Once she loses contact with the wall, no unbalanced
horizontal force acts on her. According to the law of inertia, she will
continue moving at that constant velocity (same speed and same
direction) indefinitely, until she hits another object or wall that
provides an external force. Option A is a common misconception;
gravity is very much present in orbit, but she and the station are both
falling around Earth together. There is no air resistance inside the
pressurized cabin to slow her down significantly. Option C is incorrect;
Earth's gravity acts on both her and the station equally, so she does not
"curve toward the floor" relative to the station's interior reference
frame. Option D is incorrect; a force only causes acceleration while it is
applied. Once contact ceases, the push force is gone. The resulting
constant velocity continues due to inertia, not a lingering force.
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Question 3
A net force of 50 newtons is applied to a 10-kilogram box resting on a
frictionless surface. What is the magnitude of the box's acceleration?
A) 0.2 m/s²
B) 5.0 m/s²
C) 40.0 m/s²
D) 500.0 m/s²
Answer: B
Explanation: Newton's second law states that the acceleration of an
object is directly proportional to the net force acting on it and inversely
proportional to its mass. The relationship is expressed as F = ma, which
can be rearranged to a = F/m. Substituting the given values yields a = 50
N / 10 kg = 5.0 m/s². Since the surface is frictionless, the net force is
simply the applied force. Option A incorrectly divides mass by force.
Option C is the difference, not the quotient. Option D is the product of
force and mass.
Question 4
WGU AYN1: D689 Task 1 2026-2027 BANK QUESTIONS WITH
DETAILED VERIFIED ANSWERS EXAM QUESTIONS WILL
COME FROM HERE (100% CORRECT ANSWERS A+ GRADED
Question 1
A textbook rests on a car seat as the car travels forward at a constant
65 miles per hour on a straight, flat highway. The driver suddenly slams
on the brakes, causing the car to rapidly decelerate. The textbook slides
forward off the seat. Which of the following statements best explains
why this happens, according to Newton's first law?
A) A forward force from the braking action is applied to the textbook,
pushing it off the seat.
B) The textbook's inertia keeps it moving forward at a constant velocity
while the car decelerates around it.
C) The force of friction between the textbook and the seat instantly
becomes zero during braking.
D) The force of gravity on the textbook decreases as the car slows
down.
Answer: B
,2|Page
Explanation: Newton's first law states that an object in motion
continues in motion with the same velocity (same speed and same
direction) unless a net external force acts on it. The textbook was
moving forward at 65 mph. When the brakes are applied, friction and
other forces decelerate the car, but those forces act primarily on the
car, not directly on the book. The book, due to its inertia, continues
moving forward at 65 mph relative to the ground. From the perspective
of someone in the car, the book slides forward because the car slows
down beneath it. Option A is incorrect; no forward force pushes the
book. The braking force acts on the car, not the book, in the forward
direction. The book's continued forward motion appears as sliding
relative to the decelerating car. Option C is incorrect; friction between
the book and seat may be insufficient to decelerate the book at the
same rate as the car, but it does not become zero. Option D is
incorrect; braking does not change the gravitational force on the book.
Gravity acts downward and is unrelated to the horizontal deceleration.
Question 2
An astronaut is floating motionless inside the International Space
Station, orbiting Earth. She gently pushes against the wall of the
module and begins to drift across the cabin at a constant velocity. After
she stops pushing and is no longer in contact with the wall, which
statement correctly describes her motion?
A) She will gradually slow down and stop due to the lack of gravity in
space.
,3|Page
B) She will move at a constant velocity in a straight line until an
unbalanced force acts on her.
C) She will eventually curve toward the Earth-facing side of the station
due to Earth's gravity.
D) She will accelerate continuously because the initial push continues
to act on her for a short time.
Answer: B
Explanation: This is a direct application of Newton's first law in a
microgravity environment. While the astronaut and the station are in
orbit, they are in continuous free-fall around Earth, but relative to the
station's interior, she experiences apparent weightlessness. The push
from the wall is a force that changes her velocity from zero to some
constant value. Once she loses contact with the wall, no unbalanced
horizontal force acts on her. According to the law of inertia, she will
continue moving at that constant velocity (same speed and same
direction) indefinitely, until she hits another object or wall that
provides an external force. Option A is a common misconception;
gravity is very much present in orbit, but she and the station are both
falling around Earth together. There is no air resistance inside the
pressurized cabin to slow her down significantly. Option C is incorrect;
Earth's gravity acts on both her and the station equally, so she does not
"curve toward the floor" relative to the station's interior reference
frame. Option D is incorrect; a force only causes acceleration while it is
applied. Once contact ceases, the push force is gone. The resulting
constant velocity continues due to inertia, not a lingering force.
, 4|Page
Question 3
A net force of 50 newtons is applied to a 10-kilogram box resting on a
frictionless surface. What is the magnitude of the box's acceleration?
A) 0.2 m/s²
B) 5.0 m/s²
C) 40.0 m/s²
D) 500.0 m/s²
Answer: B
Explanation: Newton's second law states that the acceleration of an
object is directly proportional to the net force acting on it and inversely
proportional to its mass. The relationship is expressed as F = ma, which
can be rearranged to a = F/m. Substituting the given values yields a = 50
N / 10 kg = 5.0 m/s². Since the surface is frictionless, the net force is
simply the applied force. Option A incorrectly divides mass by force.
Option C is the difference, not the quotient. Option D is the product of
force and mass.
Question 4
