Homework Help: physics

Posted by yazan on Saturday, September 17, 2011 at 9:57am.

a rock hits the ground at a speed of 10m/s and leaves a hole 25cm deep. what is the magnitude of the (assumed) uniform deceleration of the rock?

physics - bobpursley, Saturday, September 17, 2011 at 12:25pm
Vf^2=Vi^2 + 2ad solve for a.

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