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An object is moving to the right with a force of 20 N. What would happen if a force of 20 N started acting on it in the opposite direction?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
Victor kicked a 0.40 kg soccer ball with a force of 8 N, and Jose kicked a 0.40 kg soccer ball with a force of 4 N. Whose ball had the greater acceleration?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
Basketball player A throws a ball to Basketball player B, who catches the ball with his hands. Which of the following correctly describes the forces in this example?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
Which of the following objects would have the greatest acceleration if they each have 15 N of force acting upon it?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
If the forces acting on an object are balanced, the object will...
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
If the forces on an object are unbalanced, the object will...
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
Newton’s first law is also called the law of inertia. Which of these scenarios is best explained by this law?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
A student is riding a bus. Suddenly, the bus driver applies the brakes to avoid hitting another car. The student is thrust forward into his seatbelt. Which of these correctly explains the student’s movement and the law that it refers to?
Basketball player B’s hands exerted an equal and opposite force on the ball.
When a roller coaster cart suddenly stops, it causes the passengers to be thrust forward into their seatbelts.
The object’s velocity increases.
Victor
Stay at rest or keep moving at a constant velocity (no acceleration)
The bus stops, but the student’s body keeps moving; Newton’s 1st Law
Accelerate (speed up, slow down, or change direction)
5g ball
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