The picture needed for the question is attached.
Oh and the weight of the trolley and its contents is 160N
The question is :
(a) Calculate the minimum force that needs to be applied vertically at A to life the front of the grounds.
(b) State and explain, without calculation, how the minimum force that needs to be applied vertically at A to lift the rear wheels off the ground compares to the force you calculated in part (a)
I just don't understand it all, I think I'm misunderstanding what the perpendicular distance from the pivot is. I'm trying to revise.. and this is really bugging me.
Your help will be much appreciated.