Find the net work done by friction between the ground and the body of a snake slithering in a complete circle of 3.93 m radius.The coefficient of friction between the ground and the snake is 0.25,and the snake's weight is 54.0 N.
A)330 J
B)0 J
C)3300 J
D)670 J

Question

Quizplus · Accepted Answer

The net work done by friction is zero because the force of friction is always opposite to the direction of motion, and the displacement is zero over a complete circle.

Find the Net Work Done by Friction Between the Ground