Box Sliding Down Frictionless Ramp: Vector Equations for Determining Force

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Homework Statement

a box is sliding down a friction free ramp

Homework Equations

weight of box is 100N and the ramp is inclined at an angle of 25 degrees. determine the magnitude force.

The Attempt at a Solution

is it something like 65/100?

 

[ideasrule]

The force of what?

 

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of the accelaration of the box down the ramp.

 

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is it something like cos65 X 100