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JEE Main202331 Jan 2023Morning ShiftPhysicsLaws of MotionActual

As shown in figure, a 70 kg garden roller is pushed with a force of F → = 200 N at an angle of 30 ° with horizontal. The normal reaction on the roller is (Given g = 10 m s - 2 )

Options

  1. A800 2   N
  2. B600   N
  3. C800   N
  4. D200 3   N

Correct answer

C. 800   N

Step-by-step solution

Component of the force perpendicular to the ground, F sin 30 ° . Now for equilibrium along vertical direction, we get N = m g + F sin 30 ° = 70 × 10 + 200 × 1 2 = 800   N

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