Car kinetic energy

Determine the kinetic energy of a car with a mass of 800 kg if it travels at a speed:
a) 10 m/s
b) 20 m/s

Final Answer:

E1 =  40000 J
E2 =  160000 J

Step-by-step explanation:

m=800 kg v1=10 m/s  E1=21 m v12=21 800 102=40000 J
v2=20 m/s  E2=21 m v22=21 800 202=160000 J



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