Homework Help: physics

Posted by Nicole on Thursday, October 28, 2010 at 7:47pm.

A block of mass 2 kg is propelled by a spring with spring constant k=5200N/m onto a smooth (frictionless) track. The spring is initially compressed a distance of 0.13 m from its equilibrium configuration. At the end of the track there is a rough inclined plane at an angle of 22 degrees with respect to the horizontal and with a coefficient of kinetic friction 0.15

a) How far up the incline will the block slide before coming to rest?

b) The coefficient of static friction is us= 0.7$. Will the block remain at rest on the incline? If not, how fast will it be going when it reaches the bottom again?

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