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Mathematics 7 Online
OpenStudy (anonymous):

The figure shows a 3.95-kg box being released from rest to slide down a frictionless track of height h = 3.40 m. (Note this image is not to scale.) (a) the speed of the box vbottom at the bottom of the track b) its speed v(b) at a height of y = 1.50 m above the bottom of the track

OpenStudy (anonymous):

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