whats the que ?
For an object with mass m and speed v, the kinetic energy is defined as
K =
1
2mv2
(6.1)
Kinetic energy is a scalar (it has magnitude but no direction); it is always a positive
number; and it has SI units of kg · m2/ s
2
. This new combination of the basic SI units is
known as the joule:
1 joule = 1 J = 1 kg·m2
s
2 (6.2)
As we will see, the joule is also the unit of work W and potential energy U. Other energy
units often seen are:
1 erg = 1 g·cm2
s
2 = 10−7
J 1 eV = 1.60 × 10−19 J
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Answer:
I don't know sorry sorry
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