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April 19, 2014

Homework Help: PHYSICS

Posted by Mar on Thursday, October 14, 2010 at 1:43am.

An object of mass M = 1,284 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object?

(I'm using 1.284*9.81*cos50 to get the force but I'm still getting a wrong answer.)

Can anyone explain the steps into solving this kind of problem.

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