A 40-Kg Block Is Pushed Up a 36° Incline by a a Force

question 24

Multiple Choice

A 4.0-kg block is pushed up a 36° incline by a force of magnitude P applied parallel to the incline. When P is 31 N, it is observed that the block moves up the incline with a constant speed. What value of P would be required to lower the block down the incline at a constant speed?

• A) 27 N
• B) 15 N
• C) 13 N
• D) 17 N
• E) 19 N

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