How is friction related to work done

[SS2006]

kownig that work = f X d
if tehres friction acting as well, for example 1500 N opposing a cart moving up along a path 800M long, the cart is 120Kg.
normally work would be = 120(9.8) X 800 right
but here it'll be more cause we have to add the work needed to overcome friction ofcoruse
so where does the 1500N go, so we can find total work

 

[Andrew Mason]

kownig that work = f X d
if tehres friction acting as well, for example 1500 N opposing a cart moving up along a path 800M long, the cart is 120Kg.
normally work would be = 120(9.8) X 800 right
but here it'll be more cause we have to add the work needed to overcome friction ofcoruse
so where does the 1500N go, so we can find total work

You have to find the total force on the cart as it moves along the path. That force consists of the weight of the cart plus friction. If the path is vertical and the friction is 1500 N, you can work out the total force on the cart. The work done in overcoming friction ultimately produces heat.

AM