9. Work & Energy
Intro to Calculating Work
8:40 minutes
Problem 7.84
Textbook Question
Textbook QuestionA softball having a mass of 0.25 kg is pitched horizontally at 120 km/h. By the time it reaches the plate, it may have slowed by 10%. Neglecting gravity, estimate the average force of air resistance during a pitch, if the distance between the plate and the pitcher is about 15 m.
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