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

A block of mass 50 kg is free to slide on a frictionless inclined plane that makes an angle of 20° with respect to horizontal. A force F is applied as shown in the drawing pulling parallel to the incline. As a result, the block accelerates up the plane at 4 m/s2.

known:

m= 50 kg

a= 4 m/s^2

Angle = 20 degrees

2. Relevant equations

F=ma

Fcos(theta)

3. The attempt at a solution

F= 50kg* 4m/s2 = 200 N

200cos(20)=187.9= F x-direction

* The explanation shows me F- 167 N = 200N

F=367N

But I don't know which equation this comes from or where the 167 comes from.

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# Homework Help: Help finding the magnitude of the applied force

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