A 60-Kg Box Slides Down an Inclined Plane That Makes an an Angle

question 74

Multiple Choice

A 6.0-kg box slides down an inclined plane that makes an angle of 39° with the horizontal.If the coefficient of kinetic friction is 0.40,at what rate does the box accelerate down the slope?

• A)3.1 m/s²
• B)3.4 m/s²
• C)3.7 m/s²
• D)4.1 m/s²

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Definitions:

Serratus Anterior

The serratus anterior is a muscle that originates on the surface of the upper eight or nine ribs and inserts on the medial border of the scapula, playing a key role in the movement of the shoulder.

Linea Alba

The linea alba is a fibrous structure that runs down the midline of the abdomen, forming the seam that joins the left and right abdominal muscles.

Serratus Anterior

A muscle located on the side of the thorax, which plays a crucial role in the movement of the shoulder blade.

Rectus Abdominis

The rectus abdominis is a long muscle that extends along the front of the abdomen, known for its role in flexing the lumbar spine and helping to create a "six-pack" appearance.