In-class question

A pendulum is launched in two different ways. During both launches, the bob is given an initial speed of 3.0 m/s. On launch 1, the speed is upwards (along the trajectory), on launch 2, the speed is downwards (along the trajectory).

Which launch will cause the pendulum to swing the largest angle from the equilibrium position on the left side?

BLUE: Launch 1

YELLOW: Launch 2

GREEN: Both launches give the same

maximum displacement.




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