Answer:
Assuming that both vehicles have the same mass: It´s 9 times
Step-by-step explanation:
You can use the formula for kinetic energy which is: [tex]K = \frac{mv^2}{2}[/tex]
We can calculate two different values for each speed. We assume that the mass is "m"
[tex]K_1 = \frac{m(20)^2}{2} = \frac{400m}{2} = 200m\\\\K_2 = \frac{m(60)^2}{2} = \frac{3600m}{2} = 1800m\\\\[/tex]
As you can see the K2 is 9 times bigger than K1
