Homework Help: physics

Posted by Inascent on Thursday, November 12, 2009 at 10:46am.

I would like to thoroughly understand each steo to solve this.
In 0.750s, a 7.0kg block is pulled through a distance of 4.0m on a frictionless horizontal surface from rest. the block has a constant acceleration and is pulled by means of a horizontal spring attached to the block. The spring constant is 415N/m. By how much does the spring stretch?

physics - bobpursley, Thursday, November 12, 2009 at 11:17am
solve for acceleration
d=1/2 a t^2 solve for a, then
f=ma solve for f.
Then, knowing F
f=kx

to solve for a

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