Posted by **please help:)** on Wednesday, March 28, 2012 at 12:43pm.

A 4.6 kg block starts at rest and slides a distance d down a frictionless 31.0° incline, where it runs into a spring. The block slides an additional 24.0 cm before it is brought to rest momentarily by compressing the spring, whose spring constant is 421 N/m. What is the value of d?

What is the distance between the point of first contact and the point where the block's speed is greatest?

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