A 10-Pound Weight Is Lying on a Sit-Up Bench at the Gym

question 81

Multiple Choice

A 10-pound weight is lying on a sit-up bench at the gym. If the bench is inclined at an angle , there are three forces acting on the weight, as shown in Figure. N is called the normal force and it acts in the direction perpendicular to the bench. F is the force due to friction that holds the weight on the bench. If the weight does not move, then the sum of these three forces is 0. Find the magnitude of N and the magnitude of F .   ​

• A) lb, lb
• B) lb, lb
• C) lb, lb
• D) lb, lb
• E) lb, lb

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Sensory

Pertaining to the senses or sensation, involving the reception and transmission of signals to the brain.

Short-Term

Referring to a limited period of time, often contrasting with long-term or permanent situations.

Long-Term

Referring to an extended period of time, often implying durability or sustained attention beyond the short-term or immediate future.

Visuospatial Sketchpad

A component of the working memory that processes visual and spatial information, allowing for the manipulation of images and spatial understanding.