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Author Question: What is the initial velocity of the projectile, expressed in (m/s) if its density is 18.95 g/cm3 ? (Read 723 times)

camila

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on: Jun 23, 2013
A projectile of volume 340.50 cm3 is fired from a launcher with an intital kinetic energy of 1.99 x 103 kJ.


coco

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Reply #1 on: Jun 23, 2013
mass = 18.95 x 340.50 = 6452 g

1990000 J = 6452 x v^2 / 2

v = 24.8 m/s


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camila

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Reply #2 on: Jun 29, 2013
Thanks! It was right ;)


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