Question

xii.
Consider a ladder weighting 200N resulting against a smooth wall
such that it makes an angle of 60° with the horizontal .Find the reaction
on the ladder due to the wall and ground.
(208N)​

Answer 1

Force = 208 Newton.......

Answer 2

Explanation:

For relative displacement we may calculate the relative velocity first for A with respect to B as \large V_{BA} = V_{B} – V_{A} = 7 – 5 = 2 km/hV

BA

=V

B

–V

A

=7–5=2km/h

So the relative displacement of B wrt A is \large V_{BA} × t = 2×2 = 4V

BA

×t=2×2=4 Kilometres