Alex Throws a 0

question 24

Multiple Choice

Alex throws a 0.15-kg rubber ball down onto the floor.The ball's speed just before impact is 6.5 m/s,and just after is 3.5 m/s.If the ball is in contact with the floor for 0.025 s,what is the magnitude of the average force applied by the floor on the ball?

• A)60 N
• B)133 N
• C)3.0 N
• D)3.5 N

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