October 4, 2015

Homework Help: Physics

Posted by Anonymous on Saturday, October 25, 2008 at 2:15pm.

a)An object on a frictionless surface forms an angle of 27 with the horizontal. The object is pushed by a horizontal external force such that it moves with a constant speed. If the mass of the object is 72.3 kg, calculate the magnitude of the external force.

b)What is the magnitude of the force exerted by the inclined surface on the object?

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