MDCAT Physics MCQ #3688

A 10m uniform plank weighing 100N rests on two end supports. A 200N man stands 2.5m from the left support. Find the left support reaction.

MDCAT Physics MCQ #3688

  1. Question 1

    Q1. A 10m uniform plank weighing 100N rests on two end supports. A 200N man stands 2.5m from the left support. Find the left support reaction.

    • A) 150 N
    • B) 200 N
    • C) 100 N
    • D) 250 N

    Answer: 200 N

    Explanation: Summing torques about one end: R(10) - 100(5) - 200(7.5) = 0, so R = 200N. Option C is wrong because it ignores the plank weight.