he figure below shows three forces applied to a 5.00 kg trunk that moves leftward by 3.00 m ver a frictionless floor. The force magnitudes are F1 = 5.00 N, F2 = 9.00 N, and F3 = 3.00 N, %3D %3D %3D nd the indicated angle is 0 = 60.0°. (a) During the displacement, what is the total work done n the trunk by all forces (including the normal force and gravity)? (b) If the trunk was initially t rest, what is its final speed after being displaced 3.00 m? %3D F2 F3 halliday e g 07 27 Copyright2011 Johe Wiey& Sons Inc. All rights reserved

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**Analysis of Forces on a Trunk**

**Problem Statement:**
The figure illustrates three forces applied to a 5.00 kg trunk, which moves leftward by 3.00 m over a frictionless floor. The magnitudes of the forces are as follows:
- \( F_1 = 5.00 \, \text{N} \)
- \( F_2 = 9.00 \, \text{N} \)
- \( F_3 = 3.00 \, \text{N} \)

The angle \( \theta \) given is \( 60.0^\circ \).

**Tasks:**
- (a) Determine the total work done on the trunk by all forces, including the normal force and gravity, during the displacement.
- (b) Assuming the trunk started from rest, calculate its final speed after being displaced 3.00 m.

**Diagram Description:**

The diagram shows a trunk on a floor with:
- \( \vec{F_1} \) directed horizontally to the left.
- \( \vec{F_2} \) directed upwards and to the right, at a \( \theta = 60.0^\circ \) angle relative to the horizontal.
- \( \vec{F_3} \) directed vertically downward.

Coordinates:
- \( \theta \) is the angle between the horizontal axis and \( F_2 \).
- The diagram indicates the directions of the forces using arrows.

**Note:** The effects of gravity and normal force need consideration when calculating the net work done on the trunk.
Transcribed Image Text:**Analysis of Forces on a Trunk** **Problem Statement:** The figure illustrates three forces applied to a 5.00 kg trunk, which moves leftward by 3.00 m over a frictionless floor. The magnitudes of the forces are as follows: - \( F_1 = 5.00 \, \text{N} \) - \( F_2 = 9.00 \, \text{N} \) - \( F_3 = 3.00 \, \text{N} \) The angle \( \theta \) given is \( 60.0^\circ \). **Tasks:** - (a) Determine the total work done on the trunk by all forces, including the normal force and gravity, during the displacement. - (b) Assuming the trunk started from rest, calculate its final speed after being displaced 3.00 m. **Diagram Description:** The diagram shows a trunk on a floor with: - \( \vec{F_1} \) directed horizontally to the left. - \( \vec{F_2} \) directed upwards and to the right, at a \( \theta = 60.0^\circ \) angle relative to the horizontal. - \( \vec{F_3} \) directed vertically downward. Coordinates: - \( \theta \) is the angle between the horizontal axis and \( F_2 \). - The diagram indicates the directions of the forces using arrows. **Note:** The effects of gravity and normal force need consideration when calculating the net work done on the trunk.
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