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1. A ball is thrown vertically upward with an initial velocity of 50m/s. Find: (a) its maximum height and (b) its velocity after 3s. 2.A

1. A ball is thrown vertically upward with an initial velocity of 50m/s. Find: (a) its maximum height and (b) its velocity after 3s.

2.A ball has an initial velocity of 120 m/s at an angle of 60 degrees with horizontal. Find the magnitude of the ball's velocity after 4s.

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