Respuesta :
The kinetic energy of the boy is 2.1 kJ and the kinetic energy of the bicycle is 1.1 kJ
Kinetic Energy:
The kinetic energy of an object is due to the virtue of its motion. Mathematically the kinetic energy of an object is related to the object's mass m and its velocity v as shown below:
[tex]KE=\frac{1}{2} mv^2[/tex]
According to the question, the mass of the boy is 35kg and the mass of the bicycle is 18kg and both have a velocity of 11 m/s.
the kinetic energy of the boy:
[tex]KE=\frac{1}{2}\times35\times11^2\;J=2117J =2.1\;kJ[/tex]
the kinetic energy of the bicycle:
[tex]KE=\frac{1}{2}\times18\times11^2\;J=1089J =1.1\;kJ[/tex]
Also, the total kinetic energy will be 2.1 kJ + 1.1 kJ = 3.2 kJ.
Learn more about kinetic energy:
https://brainly.com/question/999862?referrer=searchResults
