# Vectors

An object on a ramp is being held in place by a rope attached to the top of the ramp. If the tension in the rope is 215 N, what is the mass of the object.

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1. We need to know the slope of the ramp, if friction is important, and if the object is on earth.

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posted by Damon
2. I think we have to assume friction is not important and the object is on earth.

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posted by Tristan
3. ok
weight = m g = 9.81 m

9.81 m sin (Theta) = 215 N

where Theta is the angle of the ramp up from horizontal

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posted by Damon
4. ok thx

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posted by Tristan

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