(Answered) In a fit a toddler throws straight down his favorite 1 kg

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In a fit, a toddler throws straight down his favorite 1 kg toy with an initial velocity of 2.2 m/s. What is the magnitude of the change in velocity of the toy from t = 0.15 seconds to t = 0.39 seconds?

A 71 kg ball (Ball A) traveling to the right at 7 m/s collides with a 22 kg ball (Ball B) at rest. After the collision, the 22 kg ball (Ball B) is traveling to the right at 44 m/s. What is the final velocity of Ball A?

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