The largest acceleration that a human has ever endured occurred when a race car accidentally crashed into a wall. The car was traveling at a speed of 172.8 km/h
when it hit the wall. The car came to a complete stop 2.72 x 10-s later.

a. Calculate the acceleration of the car using the acceleration formula. Express
your answer in both m/s and in "g's." One g is equal to the free-fall
acceleration of 9.8 m/s.
b. Suppose the driver of the car had a mass of 70.0 kg. What was the
unbalanced force on his body as the car underwent negative acceleration?

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

seeing the graph would

it has to be b, about 97 percent.