If a car travels at 80ft/s. What is the Kinetic Energy of the car if mass of the car is 18kg

216J

Explanation:

Given parameters:

Velocity of the car = 80ft/s

Mass of car  = 18kg

Unknown:

Kinetic energy of the car  =?

Solution:

Kinetic energy is the energy in motion of a body. It can be derived using the expression below:

    K.E =  

where m is the mass

           v is the velocity

 To solve, convert 80ft/s to m/s;

           1ft/s  = 0.3m/s

           80ft/s = 80 x 0.3 = 24m/s

Now insert parameters and solve;

    k.E = x 18 x 24  = 216J

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explanation:

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