6. A dinner plate, of mass 580g is pushed 90cm along a dining table by a constant force of F=3.6N directed at θ=24∘ below the horizontal, as shown in pictures below. If the coefficient of kinetic friction between the plate and the table's surface is 0.44, determine the normal force exerted on the plate by the table. the work done by the applied force F. the work done by the force of kinetic friction. 7. A box slides on a smooth (frictionless) horizontal surface, 1.5m above the floor, at a speed of 2.0m/s, (show in the pictures below) The box then slides down a ramp that makes an angle of 36∘ with the horizontal and has a coefficient of kinetic friction equal to 0.43 After reaching the end of the ramp, the box continues to slide horizontally on the smooth floor. Use the law of conservation of energy to calculate the final speed (v) of the box.

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