A 40-Kg Block Is Pushed Up a 36 $\degree$ Incline by a Force of Magnitude P Applied Parallel to by a Force

Multiple Choice

A 4.0-kg block is pushed up a 36 $\degree$ 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