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Mathematics 8 Online
OpenStudy (marg):

An indestructible bullet 2.5 cm long is fired straight through a board that is 8.7 cm thick. The bullet strikes the board with a speed of 421 m/s and emerges with a speed of 273 m/s. What is the average acceleration of the bullet through the board? Answer in units of m/s^2

OpenStudy (anonymous):

Use vfinal^2 - vstart^2 = 2as

OpenStudy (marg):

what does 2as mean?

OpenStudy (anonymous):

2*acceleration*distance

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