lJ Ill Consider the conservation of energy equation below. AK+AU+AEint= W+ Q+ TMW+ TMT+ TET+ TER A ball of mass m falls from a height h to the floor. (a) Identify the appropriate version of the equation above for the system of the ball and the Earth. 0 AEini: = Q +TET + TER OAK+AU=0 OAU=W OAK=W Use this equation to calculate the speed of the ball just before it strikes the Earth. (Use the following as necessary: in for mass, h for height, g for acceleration due to gravity.) (b) Identify the appropriate version of the equation above for the system of the ball. OAK=W OAK+AU=0 OAU=W O AEini: = Q +TET + TER Use this equation to calculate the speed of the ball just before it strikes the Earth. (Use the following as necessary: m for mass, h for height, 9 for acceleration due to gravity.) 2. DETAILS MY NOTES | ASK YOUR TEACHER Two objects are connected by a light string passing over a light, frictionless pulley as shown in the figure below. The object of mass m1 = 4.60 kg is released from rest at a height h = 3.80 m above the table. (2) (a) Using the isolated system model, determine the speed of the object of mass no2 = 3.00 kg just as the 4.60kg object hits the table. (b) Find the maximum height above the table to which the 3.00-kg object rises. [:m