Monday
March 30, 2015

Homework Help: Physics

Posted by Jayd on Wednesday, November 7, 2007 at 1:02pm.

A 9 kg lead brick falls from a height of 1.8 m. a) Find the momentum as it reaches the ground. b) What impulse is needed to bring the brick to rest? c) The brick falls onto a carpet 2.0 cm thick. Assuming the force stopping it is constant, find the average force the carpet exerts on the brick. d) If the brick falls onto a 5.0 cm foam rubber pad, what constant force is needed to bring it to rest?

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