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physics

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A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 22.4 N.
1. What is the mass?
2. If the maximum mass that can be used before the rope breaks is mmax = 1.72 kg, what is the maximum tension the rope can withstand? (Assuming that the mass is still released from the horizontal.)

  • physics - ,

    1.What is the mass
    find the length of the rope
    v^2/(2*g)=L
    find the mass
    (L*T)/(v^2+L*g)=m

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