Question

Show the weight of the ladder and draw the missing Frictional force.

Answer 1

since there is no friction between the ladder and the wall, there can be no vertical force component. That's the tricky part ;)

So to find the weight, divide the 100N normal force by earths gravitational acceleration, 9.8m/s^2


`W = (N)/(g) = (100N)/(9.8m/s^(2)) = (100)/(9.8) = 10.2kg`


Then;
Draw an arrow at the base of the ladder pointing towards the wall with a value of 30N, to show the frictional force.