Answer to Question #231245 in Physics for Yzang

Question #231245

A box with a mass of 300kg on top of an inclined plane (with an angle to the
horizontal of 30 degrees
) is held in place by a horizontal rope attached to a wall. What
is the tension required in the rope to keep the box from moving?

Expert's answer

"T=300(9.8)\\sin{30}=1470\\ N"

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