1-Consider hitting a baseball with a bat. If we call the force on the ball appli
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Question
1-Consider hitting a baseball with a bat. If we call the force on the ball applied by the bat as the action force, which of the following is the reaction force?
the force on the ball applied by the bat
the force on the bat applied by the ball
the force on the ball applied by the pitcher's throwing arm
the change in the motion (acceleration) of the ball that occurs as a result of being struck by the bat
2-imagine a mule pulling on a small wagon. The wagon starts at rest and accelerates with a constant acceleration of 0.25 m/s2. Which of the following statements is false?
If the pulling force that mule puts on the wagon is the action force, then the A-pulling force that the wagon puts on the mule is the reaction force.
The pulling force that mule puts on the wagon has the same size as the pulling force that the wagon puts on the mule.
The pulling force that mule puts on the wagon has the same size and direction as the pulling force that the wagon puts on the mule.
The pulling force that mule puts on the wagon has the same size and opposite direction as the pulling force that the wagon puts on the mule.
3-Imagine a mule pulling on a small wagon in a straight line at a constant speed. Which of the following statements is false?
If the pulling force that mule puts on the wagon is the action force, then the pulling force that the wagon puts on the mule is the reaction force.
The pulling force that mule puts on the wagon has the same size as the resistive forces (friction and air resistance) on the wagon.
In order to keep moving, the pulling force that mule puts on the wagon must have a greater size than the resistive forces (friction and air resistance) on the wagon.
Although the pulling force that mule puts on the wagon has the same size and opposite direction as the resistive forces (friction and air resistance) on the wagon, the force from the mule on the wagon and the resistive forces on the wagon do not make an action/reaction pair.
A-the force on the ball applied by the bat
B-the force on the bat applied by the ball
C-the force on the ball applied by the pitcher's throwing arm
D-the change in the motion (acceleration) of the ball that occurs as a result of being struck by the bat
Explanation / Answer
1-Consider hitting a baseball with a bat. If we call the force on the ball applied by the bat as the action force, which of the following is the reaction force?
B- the force on the bat applied by the ball
2-imagine a mule pulling on a small wagon. The wagon starts at rest and accelerates with a constant acceleration of 0.25 m/s2. Which of the following statements is false?
C- The pulling force that mule puts on the wagon has the same size and direction as the pulling force that the wagon puts on the mule.
Reason: the direction is not the same but is opposite to each other.
3-Imagine a mule pulling on a small wagon in a straight line at a constant speed. Which of the following statements is false?
The pulling force that mule puts on the wagon has the same size as the resistive forces (friction and air resistance) on the wagon.
B-The pulling force that mule puts on the wagon has the same size as the resistive forces (friction and air resistance) on the wagon.
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