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November 22, 2014

Homework Help: ap physics

Posted by anna on Friday, February 25, 2011 at 4:52pm.

When a rattlesnake strikes, its head acceler-
ates from rest to a speed of 21 m/s in 0.46 s
seconds. Assume for simplicity that the only
moving part of the snake is its head of mass
200 g.
How much (average) power does the rat-
tlesnake need to accelerate its head that fast?
Answer in units of W.

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