The kinetic energy of a car of mass 180kg moving at a constant velocity is 4410J. What is its velocity?

7m/s

Explanation:

Data obtained from the question include:

K.E (kinetic energy) = 4410J

m (mass) = 180kg

V (velocity) =?

Kinetic energy is the energy an object possess while in motion. It is represented mathematically as:

K.E = 1/2 mv^2

With the above formula, we obtained the velocity the car as follow:

K.E = 1/2mv^2

4410 = 1/2 x 180 x v^2

4410 = 90 x v^2

Divide both side by 90

v^2 = 4410/90

v^2 = 49

Take the square root of both side

v = √49

v = 7m/s

Therefore, the velocity of the car is 7m/s

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