theonetheonlyalex
theonetheonlyalex
28-12-2017
Physics
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LOOK AT THE PICTURES 2!
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icedipping
icedipping
28-12-2017
E = 0.5mv^2 = 0.5*44*10^2 = 2200J
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AL2006
AL2006
28-12-2017
The formula for kinetic energy is ...
K.E. = (1/2) (mass) (speed²) .
For the object in this question ...
K.E. = (1/2) (44 kg) (10 m/s)²
= (22 kg) (100 m²/s²)
= 2,200 kg-m²/s²
=
2,200 Joules .
(That's the fourth choice on the list.)
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