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A truck is moving with constant acceleration ? up a hill that makes an angle ? = 13.0° with the horizontal as shown in the figure. A small sphere of mass ? = 2.0 kg is suspended from the ceiling of the truck by a light cord. If the pendulum makes a constant angle ? = 30.0° with the perpendicular to the ceiling, what is ??

A truck is moving with constant acceleration a up a hill that makes an angle ф-: 13.0° with the horizontal as shown in the figure. A small sphere of mass m 2.0 kg is suspended from the ceiling of the truck by a light cord. If the pendulum makes a constant angle θ-30.0° with the perpendicular to the ceiling, what is a?

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Jcs ain n cos θ

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