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Q. A force of 70 N exerted at an angle of 30 degrees below the horizontal on a block of mass 8 kg that is resting on a table. What is the magnitude of the net force on the block in the x direction if the coefficient of kinetic friction is 0.1?

Q. A 0.14-kg ball is placed in a shallow wedge with an opening angle of 126°. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.

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