Physics, 24.10.2019 18:43 jzoda7318

Apuppy weighing 3 kilograms races through the dog park. if she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy?

Answers

Ans: Thus, the kinetic energy change = 4.5 J

The mass of puppy = 3kg

Kinetic energy initial = $\frac{1}{2} mv^{2}$
= $\frac{1}{2}*3*4 = 6 kg-m/s2$

Kinetic energy final = $\frac{1}{2} mv^{2} = \frac{1}{2}*3*1 = 1.5 kg-m/s2$

Thus, the kinetic energy change = 4.5 J

Answer from: Quest

he kicked it 10 feet straight up into the air? i think this works.

Answer from: Quest

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