HS physics

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A 20g rifle bullet traveling 200m/s buries itself in a 3.3kg pendulum hanging on a 3.0m long string, which makes the pendulum swing upward in an arc.

Determine the vertical and horizontal components of the pendulum's maximum displacement.

  • HS physics -

    conservationof momentum
    0.020*200=(3.300+0.020)v solve for v, velocity of the pendulum after impact.

    Now conservation of energy

    totalmass*g*height=1/2 m v^2
    solve for height the pendulum swings.
    Then horizontal comes from diagram

    Costheta=(3.0-h)/3.0
    solve for theta
    horiz distance=3.0 Tan Theta

  • HS physics -

    65

  • HS physics -

    oil

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