Thursday, January 12, 2012

Car Battery?

A typical 12 V car battery can deliver 6.0 105 C of charge. If the energy supplied by the battery could be converted entirely to kinetic energy, what speed would it give to a 1400 kg car?



.....m/s?Car Battery?
energy E = VQ = 7.2E6 J = mv^2/2

v = sqrt(2E/m) = 100 m/sCar Battery?
I got the J right but must have used m=1440 instead of 1400. Correct answer is 101.419 m/s

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Car Battery?
Omg...you are such a life saver...are you by any chance in Marzke's class section 1 phys 121...because I think we might be in the same class. :)..you rock!!!!!

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