(20%) Problem 3: A young 47 kg ice hockey goalie, originally at rest, deflects a 0.145 kg hockey puck slapped at him at a speed of 37 m/s. In this problem, take the original direction of the puck as positive. 50% Part (a) Suppose the goalie and the hockey puck have an elastic collision and the puck is reflected back in the direction from which it came. What would the final velocity of the puck, in meters per second, be in this case? A 50% Part (b) Suppose the goalie and the hockey puck have an elastic collision and the puck is reflected back in the direction from which it came. What would the final velocity, in meters per second, of the goalie be in this case? Uf,1 = m/s Grade Summary Deductions Potential 0% 100%