Problem: A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1s intervals until t=3s. At t=0s , the ball's velocity is v = (2.0 i + 4.0 j) m/s.What was the ball's launch angle?

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Two-dimensional vector direction:

tanθ=AyAx

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A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1s intervals until t=3s. At t=0s , the ball's velocity is v = (2.0 i + 4.0 j) m/s.

What was the ball's launch angle?

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