physics

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Find the tangential acceleration of a freely swinging pendulum when it makes an angle θ with the vertical. (Use theta for θ and g as necessary.)

i tried 2.56 as an answer and it was wrong, so im guessing im suppose to use symbols?

  • physics -

    Draw the force vectors: mg downward. If the pendulum is at angle theta, then the component of mg in the direction of movement is mg*CosTheta

    F=ma
    mgCosTheta= ma
    solve for a

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