A 20kg box slides up a 12m long incline at an angle of 30, Ask an Expert

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A 20kg box slides up a 12m long incline at an angle of 30 degrees with the horizontal. A force of 150 N is applied to the box to pull it up the incline. The applied force makes an angle of 10 degrees to the incline. What is the change in gravitational potential energy, in joules?

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