A Ball Is Thrown Upward from an 80-Ft Tower with an Initial

question 57

Multiple Choice

A ball is thrown upward from an 80-ft tower with an initial vertical speed of 40 ft/s.If air resistance is ignored,the ball's speed when it reaches the ground will be

• A)67 ft/s
• B)1.3 \(\times\) 10² ft/s
• C)1.2 \(\times\) 10² ft/s
• D)49 ft/s
• E)82 ft/s

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