engineering physics MCQ #6141

A body is moving with an initial velocity of 4 m/s and final velocity of 6 m/s. If its mass is 2 kg, what is the change in kinetic energy?

engineering physics MCQ #6141

  1. Question 1

    Q1. A body is moving with an initial velocity of 4 m/s and final velocity of 6 m/s. If its mass is 2 kg, what is the change in kinetic energy?

    • A) 20 J
    • B) 10 J
    • C) 30 J
    • D) 40 J

    Answer: 20 J

    Explanation: Initial KE = 1/2 * 2 * 4² = 16 J, final KE = 1/2 * 2 * 6² = 36 J, change = 36 - 16 = 20 J.