Aman uses a lever jack to lift a 2.00 x 10^3 kg car to change a tire. each stroke of the jack lifts the car a distance of 5.00 x 10^-3 m. the vertical displacement of the handle is 0.75 m for each stroke. how much total force does he use with each stroke of the jack?

a) 19,600 n
b) 3.0 x 10^5 n
c) 131 n
d) 2.9 x 10^6 n

Convert weight to Newtons:

2 * 10^3 * 9.81 = 19.62*10^3 N

Find the mechanical advantage of the handle :

.75/.005  = 150

Now divide the weight in Newtons, by the mechanical advantage:

(19.62/150)* 10^3 = 130.8 N

Round to 131 N

The answer is C.

current flows in a wire

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement