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2. Consider a ball thrown straight up in the air with an initial speed of 10 m/s. a) What is the acceleration on the ball when it is released? b) What is the acceleration on the ball when it is at its maximum height? C) What is the speed at the maximum height? d With what velocity will it return to your hand? What is the displacement? Problems 1. A guinea pig is dropped from a building. How far does it fall in the (a) first second (b) just the third second (t = 2 s to t = 3 s) (c) first three seconds (d) just the fourth second? 2. A physics student drops a penny from the top of the Empire State Building. (a) If the coin takes 8.8 seconds to hit the ground, how tall is the building? (b) With what speed will it strike the ground