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Sagot :
The amount of work done in stopping a car with a mass of 1500 kg moving at 12m/s is 108000 j.
Work done is same as the change in kinetic energy of the moving car.
We will first calculate the initial kinetic energy of the car
Kinetic energy is due to motion and is equal to half the product of mass and square of velocity.
K.E. = 1/2× mass× [tex](velocity)^{2}[/tex]
Initial K.E. = 1/2 × 1500× 12×12
= 108000 j
As the car finally stops, the final kinetic energy is zero.
Final K.E. = 0
So, work done = change in K.E. = 108000-0 j
= 108000j
To know more about work here
brainly.com/question/19382352
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