Solution: 85.11 m
Given:
acceleration of the car, 
initial velocity,
final velocity, 
we need to find the displacement (s) of the car.
we would use the equation of motion:

hence, the displacement done by the car is = 85.11 m
the answer is c) when it becomes excessive, uncontrollable , and affect daily life
Answer:

Explanation:
Let the mass of bullet is m, initial velocity of bullet is vi and c be the specific heat of the bullet.
Kinetic energy, K = 1/2 mvi^2
According to the question, 50% of the kinetic energy is equal to the heat energy absorbed by the bullet.
50% of K = mass of bullet x specific heat x rise in temperature
1/4 mvi^2 = m x c x ΔT

45✖️77 and then you will get your answer