December 1, 2015

Homework Help: Physics

Posted by Chad on Thursday, August 9, 2012 at 10:48am.

Box, mass m 1 , at rest against a compressed spring, spring constant k and compression of Δx, at the top of a
ramp, height h, is released. It slides down the ramp, angle θ, with friction, coefficient μ. Half way down the
ramp, it bumps into and sticks to another box, mass m 2 , and together, they slide to the bottom. If m 1 = 2.0 kg,m2= 3.0 kg, k = 500 N/m, Δx = 0.40 m, h = 5.0 m, μ= 0.30, θ= 30.0O, how long does it take both boxes to reach the bottom (starting from when the first box is released)? The spring is parallel to the ramp surface and the Δx is measured parallel to the ramp surface.

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