In the figure, a block of mass m = 3.30 kg slides from rest a distance d down a frictionless incline at angle θ = 35.0 ˚ where it runs into a spring of spring constant 450 N/m. When the block momentarily stops, it has compressed the spring by 15.0 cm. What are (a) distance d and (b) the distance between the point of the first block–spring contact and the point where the block's speed is greatest?

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