Question

A 3m long ladder weighing 20kg leans on a frictionless wall. Its feet rest on the floor 1m frm the wall. Find the reaction forces of the wall & the floor. Fig. of this Que. is given in the Textbook. plzzzz......answer as soon as possible as tmrw is test

Answer 1

As one force is acting perpendicular to the wall and the other at certain point. This creates a pivot action if the ladder falls down. So the F2 force is resolved in two forces; one that acts normal to the floor and the other which keeps it from falling that is opposite to the F1

So for the ladder to be in vertical equilibrium the vertical forces should cancel out

Thus W- N = 0

Similarly for horizontal, the forces acting horizontally should cancel out. 
So F- F1= 0

Answer 2

Explanation:

refer to the attachment above