Physics

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?

asked by Riley
  1. https://www.jiskha.com/display.cgi?id=1500230280

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

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

    posted by Ms. Sue
  3. see other post

    posted by bobpursley

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