Question

A ladder AB of length 5 m, weighing 300 N is placed against a vertical wall, makes an angle of 60o
with the horizontal floor. The coefficient of friction between the vertical wall and the ladder is 0.20 and
that between the floor and the ladder is 0.30. In addition to the self weight, the ladder has to support a
man weighing 500 N at a distance of 4 m from end A (end A on the floor) and 1 m from end B (end B on
the wall). Calculate the minimum horizontal force to be applied at A to prevent slipping of the ladder.

Answer 1

Answer:

Write your question here (Keep it simple and clear to get the best answer)THE LINEAR EXPANSIVITY OF THE MATERIAL OF A CUBE IS 12*10-6 K-1 IF THE LENGTH OF EACH SIDE OF THE CUBE IS 10CM FIND THE AREA FOR ONE FORCE OF THE CUBE AND THE VOLUME OF THE CUBE WHEN ITS TEMPERATURE RAISED BY 30K CALCULATE IT?SHOW WORKINGS AND ANSWERS