Respuesta :
Using the definition of kinetic energy, we have:
[tex]E_{c}= \frac{mv^2}{2} \\ 2543.2*2=110v^2 \\ \boxed {v=6.8m/s}[/tex]
[tex]E_{c}= \frac{mv^2}{2} \\ 2543.2*2=110v^2 \\ \boxed {v=6.8m/s}[/tex]
a girl skateboards with a kinetic energy of 2543.2 J. if the girl and the skateboard have a total mass of 110 kg, the speed will be 6.8 m/s.
What is kinetic energy?
The energy that only an object has as a result of motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from resting to the indicated velocity.
What is speed?
Speed, which would be a scalar quantity, describes how quickly an object was traveling.
Given data:
Kinetic energy = 2543.2 J.
Mass = 110 kg
It speed can be calculated by using the formula:
[tex]E = mv^{2} /2[/tex]
where, E is kinetic energy , v is speed and m is mass.
Now, put the value of given data in above formula:
[tex]E = mv^{2} /2\\2543.2 J = 110 *v^{2} /2\\v = 6.8 m/s[/tex]
Therefore, the speed will be 6.8 m/s.
To know more about speed and kinetic energy.
https://brainly.com/question/15764612
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