A 2 kg breadbox on a frictionless incline of angleθ = 42 ° is connected, by a cordthat runs over a pulley, to a light spring of springconstantk = 102 N/m, as shown in Figure. The box isreleased from rest when the spring is unstretched. Assume that thepulley is masslessand frictionless. (a) What isthe speed of the box when it has moved 13 cm down the incline?(b) How far down the incline fromits point ofrelease does the box slide before momentarily stopping, and whatare the (c) magnitude and (d)direction (ifup the incline then type 1, if downthe incline then type 2) of the box’s acceleration at theinstant the box momentarily stops?


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