A box of mass m1 = 2.0 kg starts from rest and slides down the frictionless...

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Physics

A box of mass m1 = 2.0 kg starts from restand slides down the frictionless incline. At point A, the boxencounters a (massless) spring of spring constant k. Itcompresses the spring a distance x = 0.25 m to point Bwhere the speed of the box is 4.4 m/s. The first box is thenremoved and a second box of mass m2 = 3.0 kg isplaced on the same incline at the same initial point and let gofrom rest. At the same point B, the velocity of the second box isfound to be 5.6 m/s. Find

(a) the vertical height h that both boxes slidthrough before reaching point B,

(b) the spring constant, k.

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