3. A 4-kg bowling ball rolls at a speed of 7 m/s on the roof of the building that is 164 m tall. a. Calculate the kinetic energy of the ball. List and use the correct formula to determine the energy of the ball. Identify all variables from the formula (mass or height or g or velocity). Then, substitute them into the formula. Next, show your answer with correct units. Formula: mass: height: velocity: g: Problem setup: Answer: b. Calculate the gravitational potential energy of the ball. List and use the correct formula to determine the energy of the ball. Identify all variables from the formula (mass or height or g or velocity). Then, substitute them into the formula. Next, show your answer with correct units.