A 15-Kg Playground Ball Is Moving with a Velocity of 3

question 48

Multiple Choice

A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. The ball leaves this surface 0.50 s later with a velocity of 2.0 m/s directed 60° above the horizontal. What is the magnitude of the average resultant force on the ball?

• A) 14 N
• B) 11 N
• C) 18 N
• D) 22 N
• E) 3.0 N

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