Recent content by zen123

  1. Z

    What is the relationship between force, momentum, and impulse in a collision?

    A 4.5 kg ball initially rest at the edge of a 2.5 m long, 1.5 m high frictionless table. A hard plastic cube of mass 0.65 kg slides across the table at a speed of 20m/s and strikes the ball to leave the table in the direction in which the cube was moving. At t= 1 sec , F = .5 x10^3 At t= 2...
  2. Z

    What is the minimum distance D that will prevent the cable from snapping?

    im just not sure how to find D. i tired useing it as a torque equation, and solve for the radius, but i just can't seen to get it right. i am at a loss for what to do!
  3. Z

    What is the minimum distance D that will prevent the cable from snapping?

    a uniform beam of weight 400 N and length 3.2 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N. (a) What value of D corresponds...