Physics

posted by Riley

A 30m bar with a mass of 20kg is being lifted by a string. The bar makes an angle of 55 degrees above horizontal (between the bar and ground). The string is attached to the ceiling vertically.

What is the tension on the string?
What is the normal force given by the bar on the ground
what is the force of static friction given by the ground on the bar?

  1. bobpursley

    https://www.jiskha.com/display.cgi?id=1500230280

    the questions have to be answered. Physics is not a guessing game.

  2. Ms. Sue

    Are you sure that's 30 meters? That's over 1/2 and American football field long.

  3. bobpursley

    see other post

Respond to this Question

First Name

Your Answer

Similar Questions

  1. PHYSICS

    There's a bar with length of 6.49m and mass of 5.45kg leaning against a frictionless wall. It makes an angle of 66.08 deg with the ground. A block with mass of 44.98 kg hangs from bar at distance d up from point of contact between …
  2. physics

    A uniform bar of length 12 m and mass 3 kg is attached to a wall with a hinge that exerts a horizontal force Hx and a vertiscal force Hy on the bar. The bar is held by a cord that makes a 90 degree angle with respect to bar and 43 …
  3. physics

    A nonuniform, horizontal bar of mass 3.43 kg is supported by two massless wires against gravity. The left wire makes an angle 21.9 degrees, with the horizontal, and the right wire makes an angle 61.8 degrees. The bar has length 1.04 …
  4. physics

    The bars are in equilibrium, each 5 m long, and each weighing 82 N. The string pulling down on the two bars is attached 0.6 m from the fulcrum on the leftmost bar and 0.5 m from the left end of the rightmost bar. The spring (of constant …
  5. Physics

    A solid bar of length L = 1.32 m has a mass m1 = 0.751 kg. The bar is fastened by a pivot at one end to a wall which is at an angle θ = 35.0 ° with respect to the horizontal. (in other words, the angle between the wall and the …
  6. physics

    a 10.0m long bar is attached by a frictionless hing to a wall and held horizontally by a rope that makes an angle of 53 deg with the bar the bar is uniform and weights 39.9 N. how far from the hinge should a 10.0kg mass be suspended …
  7. Physics

    The figure (Figure 1) shows a model of a crane that may be mounted on a truck.A rigid uniform horizontal bar of mass m1 = 80.0 kg and length L = 5.30 m is supported by two vertical massless strings. String A is attached at a distance …
  8. Physics - Tension Question

    A uniform bar of mass 12 kg and length 1.4 m is held by a hinge on a vertical wall. A string is attached to the end so that the bar is in mechanical equilibrium. The angle between the bar and the string is 25o. Find the tension in …
  9. Physics

    A bar with a mass of 20kg with a length of 30m is being lifted by a string and makes an angle of 55 degrees. The string is attached to the ceiling vertically. What is the tension on the string?
  10. Physics

    A horizontal uniform bar of mass 2.6kg and length 3.0m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.65m from the other end. A monkey of mass 1.3kg walks …

More Similar Questions