Question

The wheels, axle, and handles of a wheelbarrow weigh W = 65 N. The load chamber and its contents weigh WL = 538 N. The drawing shows these two forces in two different wheelbarrow designs. To support the wheelbarrow in equilibrium, the man’s hands apply a force to the handles that is directed vertically upward. Consider a rotational axis at the point where the tire contacts the ground, directed perpendicular to the plane of the paper. Find the magnitude of the man’s force for both designs.

there's 2 pictures of a guy with a wheelbarrow and there's 0.400 m on one side of the WL and then 0.200 m between WL and W and then 0.700 m between W and the man with the force (F). the other picture there's 0.600 m between the WL and W and there's 0.700 m between W and the man with the force (F). I've been working on this for an hour I really need help!

Answer 1

I just worked this out, I'm not sure if my figure is right.

Did you guys learn about moment or torque?

Answer 2

Here is my solution, let me know if the figure is correct with your description:

http://i61.tinypic.com/554h2s.jpg

Answer 3

DonHo,

Thank you! That was spot on and was correct. -A physic's student a year later