A Uniform Sign Is Supported Against a Wall at Point

question 18

Multiple Choice

A uniform sign is supported against a wall at point P as shown in the figure. If the sign is a square 0.40 m on a side and its mass is 4.0 kg, what is the magnitude of the horizontal force that the wall at P experiences?

• A) 20 N
• B) 0.00 N
• C) 7.8 N
• D) 98 N

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