Acar traveling at 60 mph has how much more energy than a car going at 20 mph? how many times does the kinetic energy of a car increase when traveling 60 mph as opposed to traveling 30 mph? k. e. increases times.

Explanation :

(a) Initial velocity, v₁ = 60 mph

Final velocity, v₂ = 20 mph

Let KE₁ and KE₂ are the initial and final kinetic energies.

So, the kinetic energy increases 9 times.

(b) Initial velocity, v₁ = 60 mph

Final velocity, v₂ = 30 mph

Let KE₁ and KE₂ are the initial and final kinetic energies.

So, the kinetic energy increases 4 times.

Hence, this is the required solution.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

it was given as a lesson and guide for prayer.