show your work. john uses a 25N force to push a boulder off a cliff that is 312m tall. What is the work done on the boulder?

7800

work=force x distance

Force in Newtons

Distance in Meters

Work in Joules

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west