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ma Vz VO 2 = 2 ax V 2 = 2 ( 4 ) (3 ) V = 4. 899 m/s 2. A large ball
ma Vz VO 2 = 2 ax V 2 = 2 ( 4 ) (3 ) V = 4. 899 m/s 2. A large ball is dropped from a height of 20.0 meters above a Lake. The ball is initially at rest, as shown in the diagram. The ball masses .250 Kg. A) What is the potential energy of the ball just before being dropped? B) What is the speed of the ball just before striking the water? C) If the water will apply a resistive force of 25.5 N on the ball how deep into the water will the ball travel? (8 points) a ) PE = mah (, 250) (9.81 ) (20 ) PE = 49.05 J Page 1 Tollefson/evhs
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