Huh? There's nothing to solve. Just evaluate the numbers...
½ (900kg)*(20m/s)^2
= ½(900)(20)^2(kg)(m/s)^2
= (450*400) kg-m^2/s^2
= 180000 N-m
= 180KJ
Please show me the steps to solve this:
KE = ½ (900kg)*(20m/s)^2
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