Finding the magnitude of net force

  • #1
How do you find magnitude of net force given mass, angle, and acceleration? I have a mass of 725 kg, an acceleration of 5.10 m/s squared and an angle of 14.0 degrees.

The only equation I'm given is F=M*A but I don't know how to apply it when I have an angle as well.
 

Answers and Replies

  • #2
MathematicalPhysicist
Gold Member
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I guess your mass is on an incliened plane with angle 14 degrees.

If so, then if there's no friction you have just gravitational force downwards, decompose this force into two Parts, one Normal to the surface (but opposite to the Normal force), the other parallel to the plane of inclination.

Hopes that helped somehow, your post doesn't seem to be very clearly written.
 
  • #3
Hm okay. I'm sorry I didn't clearly state the question. The original question asks, "Find the magnitude of net force (i.e. the sum total of all the forces) on the following object:
A 725 gram block that is accelerating at 5.10 m/s2 at an angle of 14.0 degree relative to horizontal.
 

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