Homework Help: Physics

Posted by Anne on Wednesday, November 30, 2011 at 8:25pm.

In 0.780 s, a 6.50-kg block is pulled through a distance of 3.85 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring constant of the spring is 455 N/m. By how much does the spring stretch?

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