Question #6426281Single Choice

Physics

Question

A person lifts an object with mass m=1kg from rest, raising it by 2 m. At this point, the object's speed is 2 m/s. Which of the following statements is INCORRECT? (Take g = 10m/s2)

Options

A
    The work done by the net external force on the object is 12 J.
B
    The work done by the net external force on the object is 2 J.
C
    The work done by the person on the object is 22 J.
D
    The work done by the object to overcome gravity is 20 J.

Answer & Analysis