At 60 mph the force of your car impacting a surface is about four times as great as 30 mph: True or False?

Question

Quickly please!

Answer 1

I don't know about 4 times but Here's how it works. Say you pull up to the wall and try to push it over and succeed. How much damage did you do to the car. Little or none. Now imagine hitting the wall at 30. The wall can't give fast enough to get out of you're way so you damage you're car. At 60. even more damage.  It's like sticking a straw in a potato. The potato is the car and the wall is the straw.

Answer 2

UCANTCME is right

Answer 3

False

Answer 4

False.........

at 60 miles per hour the force would be 120 miles per hour.

at 30 miles per hour the force would be 60 miles per hour.

Answer 5

Kinetic energy is determined by the formula KE=1/2*m*V^2.  Doubling the velocity will cause the energy to increase by 4 times.

Answer 6

In the sense that the kinetic energy is four times as much, yes, the "force" (energy) would be 4x.

a lot of incorrect answers here.

Answer 7

force = mass x acceleration

force = (constant) x 60

force = (constant) x 30

it will always be a 2:1 ratio, given the constant.  in other words, the impact will always be twice as much at 60, as long as you keep the identical constant.