Question

PHYSICS QUESTION, WILL MARK BRAINLIEST !!! A construction truck collides with the back of a subcompact car. Which one has the larger change of velocity during the collision?
The huge truck has a larger change in velocity
They have the same change of velocity
Neither one changes its velocity
The small car has a larger change in velocity.

Please explain the answer.

Answer 1

Answer:

the small car has a larger change in velocity

Explanation:

it has a larger change in velocity because it is small compared to the big truck that hit the car.

Answer 2

Answer: The small car has a larger change in velocity.

Explanation:

The largest change of velocity will be in the smallest mass car, this happens because in the collision the change is in the kinetic energy; k = (1/2)m*v^2

where m is the mass and v is the velocity

so for a fixed change of kinetic energy k (that depends on the collision), if m is big, the change in v must be small, and if m decreases, v must increase.

from this, we can see that the vehicle with a smaller mass will be the biggest change in the velocity.

The correct option is:

The small car has a larger change in velocity.