- #1

- 3

- 0

## Homework Statement

How much force does it take to move M

_{1}up the incline plane and what is the net force.

This isnt exactly a homework equation this picture is from my last physics test where we were given M

_{1}= 10kg, the coefficients of frictions with u

_{s}= .8 and u

_{k}= .3 our job was to find m

_{2}the acceleration and the tension. The pully is frictionless. While going over the test though our professor made told us he almost made us figure out how much force was used to lift the block M

_{1}up and the net force once the block started moving. Ignore the arrow over the pully that was from the original problem. Im worried he will put something like this on the final.

## Homework Equations

F = ma

F

_{n}= m

_{1}a = T - F(friction static) + W

m

_{2}a = W

_{2}- T

a) however that is going down the slope so for going up the slope i assume i would use:

F(friction static) + Work(parallel) - T

this is where i get lost since there are two blocks it looks like the tensions would cancel out since i am using a frictionless pully and i would be subtracting the weight of block two instead of the tension. so

F(friction static) + Work(parallel m

_{1}) - W(m

_{2}) ?

If so how does that help me figure out the net once the block has started moving and is now under kinetic friction?