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Verified answer
Diketahui :v1 = 20 m/s
v2 = 10 m/s
m = 1 kg
Ditanyakan : Q = ... J
Pembahasan :
Besar kalor yang timbul = Besar perubahan energi kinetik
Q = (Delta)Ek
Q = 0.5 . m . (Delta) v^2
Q = 0.5 . 1 . ( 20^2 - 10^2 )
Q = 0.5 . 300 = 150 J