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A projectile is launched from the origin of a coordinate system where the positive x axis points horizontally to the right and the positive y axis points vertically upward. What was the projectile’s launch angle with respect to the x axis if, at its highest point its direction of motion has rotated (a) clockwise through 50° or (b) counterclockwise through 30°? Explain.
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Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
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