A mass of 22.1 kg is placed on a horizontal surface with a coefficient of kineti

Question

A mass of 22.1 kg is placed on a horizontal surface with a coefficient of kinetic friction of 0.67. Three forces are applied to it as shown with force 2 having a magnitude of 24 Newtons and is applied 42.9 degrees below the horizontal, the magnitude of force 3 is 32 Newtons applied in the negative y direction, and force 1 is unknown, but is applied at 31.6 degrees above the horizontal. These forces overcome static friction and the mass moves 9 meters parallel to the surface in the positive x direction. As it slides 9 meters in the positive x direction, the kinetic energy increases by 83 Joules. What is the magnitude of force 1 in Newtons?

Explanation / Answer

A mass of 22.1 kg is placed on a horizontal surface with a coefficient of kineti

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