Question

1. Read each description below. Choose the force diagram (free-body diagram) that best represents the description. The forces are acting on the object in red type. You may neglect the effects of air resistance.

A. Mindy's Christmas tree ornament hangs motionless on a tree.
B. Corey's Christmas tree ornament is falling to the floor.
C. A ball thrown by Ginger is moving upward through the air.
D. A ball dropped by Melissa is falling downward toward the floor.
E. Matt's book is motionless on a table.
F. A ball that was thrown upward by Yvonne is at the top of its path.

For each statement, please choose a diagram representing the force on the object. (Diagrams are in the attachment)

Answer 1

Free-body diagrams are tools to visualize external forces on an object, drawn as a point. Each scenario given (hanging ornament, falling ornament, moving and dropped balls, book on a table, and ball at top of its path) will have a unique diagram with forces like gravity, tension, and normal force labeled as vectors, and x/y components shown if necessary.

Step-by-step explanation:

In physics, a free-body diagram is a graphical representation used to visualize the forces acting on an object. To correctly create a free-body diagram, follow these steps:

• Draw the object as a point, especially when considering it as a particle.
• Label all the external forces acting on the object with vector arrows.
• Resolve each force into its x and y components if necessary for analysis.
• Create separate diagrams for each object if multiple objects are involved.

Each scenario provided in the question will have a different free-body diagram:

1. Mindy's Christmas tree ornament: It's stationary, with two forces in balance: gravitational force (weight) pulling down and the tension in the string pulling up.
2. Corey's Christmas tree ornament: Only one force, gravitational force, is acting on it as it falls.
3. Ginger's ball moving upward: Two forces here - gravitational force pulling down and the initial upward force while it moves up.
4. Melissa's dropped ball: Similar to B, only gravitational force acts on it.
5. Matt's book on a table: Gravitational force pulls it down while the normal force from the table supports it from below.
6. Yvonne's ball at the top of its path: Though motionless at this instant, the only force acting on it is gravity.

Note, while drawing a free-body diagram, do not include net forces or internal forces.

Answer 2

A. Mindy's Christmas tree ornament hangs motionless on a tree. --- Diagram C
B. Corey's Christmas tree ornament is falling to the floor. --- Diagram A
C. A ball thrown by Ginger is moving upward through the air. --- Diagram B
D. A ball dropped by Melissa is falling downward toward the floor. --- Diagram A
E. Matt's book is motionless on a table. --- Diagram C
F. A ball that was thrown upward by Yvonne is at the top of its path --- Diagram A.