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Friction: You push downward on a trunk at an angle 25° below the horizontal with a...

Friction: You push downward on a trunk at an angle 25° below the horizontal with a force of 750 N. If the trunk is on a flat surface and the coefficient of static friction between the surface and the trunk is 0.61, what is the most massive trunk you will be able to move? **PLEASE WRITE CLEARLY** thank you, getting ready for my physic's test this week.

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