Respuesta :
Explanation:
Kinetic energy is the energy of a substance or object due to the motion of its particles.
Mathematically, K.E = [tex]\frac{1}{2}mv^{2}[/tex]
Therefore, more is the velocity of an object more will be its kinetic energy.
Since velocity of a large tractor-trailer is 75 km/hr, therefore, its kinetic energy will be more than the kinetic energy of given small sports car.
Answer:
Large tractor-trailer traveling at 75 km/hr will have more kinetic energy.
Explanation:
Kinetic energy is defined as the energy of an object due to its motion. It generally depends upon the mass and velocity of the object.
[tex]K.E=\frac{1}{2}mv^2[/tex]
Both mass and velocity of the object are directly proportional to the kinetic energy of the object.
Mass of a sports car in comparison to large tractor-trailer is small.
[tex]m_{car}<m_{truck}[/tex]
Also given that velocity of car is 35 km/hr and velocity of truck is 75 km/hr.
[tex]v_{car}<v_{truck}[/tex]
As we can see that both the mass and velocity of the truck is greater which means that kinetic energy possessed by the truck will be more than that if the car.
[tex]K.E_{car}<K.E_{truck}[/tex]
[tex]\frac{1}{2}m_{car}v_{car}^2<\frac{1}{2}m_{truck}v_{truck}^2[/tex]
