Student question Time Left : 00:09:34 The kinetic energy of a rolling billiard ball is given by KE=(1/2)mv2 . Suppose a 0.18-kg billiard ball is rolling down a pool table with an initial speed of 4.7 m/s . As it travels, it loses some of its energy as heat. The ball slows down to 3.8 m/s and then collides head-on with a second billiard ball of equal mass. The first billiard ball stops completely, and the second one rolls away with a speed of 3.8 m/s . Assume the first billiard ball is the system. Part A Calculate the work done, w , for the process. Express your answer in joules to two significant figures.

Student question Time Left : 00:09:34 The kinetic energy of a rolling billiard ball is given by KE=(1/2)mv2 . Suppose a 0.18-kg billiard ball is rolling down a pool table with an initial speed of 4.7 m/s . As it travels, it loses some of its energy as heat. The ball slows down to 3.8 m/s and then collides head-on with a second billiard ball of equal mass. The first billiard ball stops completely, and the second one rolls away with a speed of 3.8 m/s . Assume the first billiard ball is the system. Part A Calculate the work done, w , for the process. Express your answer in joules to two significant figures.