What are ,begin emphasis,two,end emphasis, reasons the length of the toy car's front end changes more when the car's speed is greater?

Answer options with 4 options
A.
A faster toy car needs a greater unbalanced stopping force to stop somewhat instantly.
B.
The toy car's speed causes more friction which adds to the force collapsing the front end.
C.
A faster toy car has greater kinetic energy, so the front end needs to absorb more energy.
D.
The toy car's speed increases the potential energy that needs to be stored in the front end.

1 answer

The two reasons the length of the toy car's front end changes more when the car's speed is greater are:

C. A faster toy car has greater kinetic energy, so the front end needs to absorb more energy.
A. A faster toy car needs a greater unbalanced stopping force to stop somewhat instantly.

While option B discusses friction, it doesn't directly relate to the length change due to speed as clearly as options A and C do. Option D also doesn't directly pertain to the observed change in length because potential energy is not the primary factor in the context provided.