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Physics

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A(n) 5.52 g bullet is fired into a(n) 3.07 kg ballistic pendulum and becomes embedded in it.The acceleration of gravity is 9.8 m/s^2. If the pendulum rises a vertical distance of 4.48 cm, calculate the initial speed of the bullet. Answer in units of m/s

  • Physics - ,

    Apply conservation of energy during the upward swing to compute the velocity of the pendulm with imbedded bullet.

    V= sqrt(2gH)= 0.937 m/s

    Then apply conservatuion of momentum to the bullet-imbedding process to compute the initial velocity of the bullet, v.

    v*m = (M+m)V

    m = bullet mass.
    M = pendulum mass

    Solve for v.

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