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Nastasi K.

asked • 10/28/15

Physics Help?

A bullet going 153 m/s crashes through a wood plank. After passing through the plank, its speed is 130 m/s. Another bullet, of same mass and size traveling at 92 m/s is also fired at the plank.

What will this second bullet's speed be after tunneling through?


1.) The resistance of the plank is independent of the speed of the bullet.

2.) The plank does the same amount of work on the two bullets.

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