A 18-Kg Block Is Released from Rest at the Top of of a Rough

question 84

Multiple Choice

A 1.8-kg block is released from rest at the top of a rough 30° inclined plane. As the block slides down the incline, its acceleration is 3.0 m/s² down the incline. Determine the magnitude of the force of friction acting on the block.

• A) 4.2 N
• B) 3.0 N
• C) 3.4 N
• D) 3.8 N
• E) 2.3 N

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