MDCAT Physics MCQ #3656

A mechanic applies a 100 N force at an angle of 30 degrees to a wrench of length 20 cm. What is the torque?

MDCAT Physics MCQ #3656

  1. Question 1

    Q1. A mechanic applies a 100 N force at an angle of 30 degrees to a wrench of length 20 cm. What is the torque?

    • A) 20 Nm
    • B) 10 Nm
    • C) 17.3 Nm
    • D) 5 Nm

    Answer: 10 Nm

    Explanation: Torque is rF sin(theta); sin(30) is 0.5, so 0.2m * 100N * 0.5 = 10 Nm. Option C fails by using cosine.