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Practice: Motion of a Body on a Smooth Inclined Plane

A body of mass 9 kg was moving along the line of greatest slope of a smooth plane inclined at 60 to the horizontal. A force of 3 kg-wt was acting on the body, where the line of action of the force was directed toward the plane at 30 upward of the horizontal. Find the magnitude of the normal reaction of the plane on the body. Take 𝑔=9.8/ms.

  • A6 kg-wt
  • B63 kg-wt
  • C33 kg-wt
  • D3 kg-wt

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