what happens to the kinetic energy of a moving car if you doubled the mass of the car?\nit will decrease by…

what happens to the kinetic energy of a moving car if you doubled the mass of the car?\nit will decrease by 2 times\nit will increase by 4 times\nit will increase by 2 times

what happens to the kinetic energy of a moving car if you doubled the mass of the car?\nit will decrease by 2 times\nit will increase by 4 times\nit will increase by 2 times

Answer

Explanation:

Step1: Escribir la fórmula de energía cinética

La energía cinética ( K ) de un objeto se calcula con la fórmula ( K=\frac{1}{2}mv^{2} ), donde ( m ) es la masa y ( v ) es la velocidad.

Step2: Analizar el efecto de duplicar la masa

Si la masa original es ( m_{1} = m ) y la nueva masa es ( m_{2}=2m ) (duplicada), y suponiendo que la velocidad ( v ) permanece constante. La energía cinética original ( K_{1}=\frac{1}{2}mv^{2} ). La nueva energía cinética ( K_{2}=\frac{1}{2}(2m)v^{2}=mv^{2} ).

Step3: Calcular la relación entre ( K_{2} ) y ( K_{1} )

Dividir ( K_{2} ) entre ( K_{1} ): ( \frac{K_{2}}{K_{1}}=\frac{mv^{2}}{\frac{1}{2}mv^{2}} = 2 ).

Answer:

It will increase by 2 times.