A person starts to mow a lawn with 50kg old fashioned push lawn mower. The handle of the mower makes an angle of 45 degrees with the sure of the lawn. A 200 N force is applied along the handle of the mower by the person
a. Determine the normal force exerted by the ground on the mower
b. If u=0.2, determine if the mower moves with a constant speed.
c.How far the mower will travel if the person pushes it for 1min along the staright line?
The Attempt at a Solution
a) Fnormal = 200Nsin45 = 141
b) F=uFnormal (.2)(141) = 28.2
F = ma
112 / 50
a = 2.24
Not sure if a or b are correct