Find the net work done by friction on the body of a snake slithering in a complete circle of 1.04 m radius. the coefficient of friction between the ground and the snake is 0.25, and the snake's weight is 78.0 n.

Answer is 0 joule

Explanation:

Because displacement is = 0 and also work is = 0

(If you complete a circle you displacement is = 0)

increase masses, decrease separation

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.