(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An 83.6 N box of clothes is pulled 20.1 m up

a 39.5◦ ramp by a force of 119 N that points

along the ramp.

The acceleration of gravity is 9.81 m/s2 .

If the coefficient of kinetic friction between

the box and ramp is 0.23, calculate the change

in the box’s kinetic energy. Answer in units J

2. Relevant equations

Ff=u(k)Fn

KE=1/2mv^2

3. The attempt at a solution

I am a little bit confused on this problem. I think i have to add up all the forces by multiplying the normal force and uk. Also then i think we have to find the x-value of the force acting on the angle but i cant seem to put it all together or find a formula which helps me put everything together . Please if possible i kinda need help in both the concept and the formula

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# KE and Friction

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