009 10.0 points A racing car has a mass of 1810 kg. The acceleration of gravity...

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Answer 1

Answer #1

1) Mass = 1810 kg

Speed = 131 km/h = 131 x (5/18) = 36.4 m/s

Then Kinetic Energy = $\frac{1}{2}mv^2 = \frac{1}{2}(1810)(36.4)^2 = 1199088.8J \simeq 1200kJ$

2) Given mass = 7.4 x 10⁴ kg

Kinetic Energy = 1 x 10⁹ J

Then $K.E = \frac{1}{2}mv^2$

V) 7.4×101 164.4m/s

Answer 2

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