AshlanM89530 AshlanM89530
  • 25-10-2022
  • Physics
contestada

How much Kinetic Energy does a 731.8 kg race car have when it is traveling 91 m/s across a 120 m tall bridge?

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ChrissyA167128 ChrissyA167128
  • 25-10-2022

ANSWER

3030017.9 J

EXPLANATION

Kinetic energy is the energy of an object due to its motion - not its position. It is given by the equation,

[tex]KE=\frac{1}{2}\cdot m\cdot v^2[/tex]

In this case, the mass of the race car is 731.8 kg, and its velocity is 91 m/s, so its kinetic energy is,

[tex]KE=\frac{1}{2}\cdot731.8kg\cdot(91m/s)^2=3030017.9J[/tex]

Hence, the kinetic energy of the race car is 3030017.9 Joules.

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