Solution Found!
Answer: A 20.0-kg rock is sliding on a rough, horizontal
Chapter 6, Problem 52E(choose chapter or problem)
Problem 52E
A 20.0-kg rock is sliding on a rough, horizontal surface at 8.00 m/s and eventually stops due to friction. The coefficient of kinetic friction between the rock and the surface is 0.200. What average power is produced by friction as the rock stops?
Questions & Answers
QUESTION:
Problem 52E
A 20.0-kg rock is sliding on a rough, horizontal surface at 8.00 m/s and eventually stops due to friction. The coefficient of kinetic friction between the rock and the surface is 0.200. What average power is produced by friction as the rock stops?
ANSWER:
Solution 52E
Step 1:
Consider the data given
Mass of rock
Velocity of the down the inclined plane
Kinetic friction
Let us find the kinetic energy of the rock
This is obtained by using
Substituting the values we get
Thus we find kinetic energy as 640 J