Aporsche 944 turbo has a rated engine power of 217 hp. 30% of the power is lost in the drive train, and 70% reaches the wheels. the total mass of the car and driver is 1530 kg , and two-thirds of the weight is over the drive wheels.

part a what is the maximum acceleration of the porsche on a concrete surface where μs=1.00? express your answer with the appropriate units. view available hint(s) amaxa m a x = nothing nothing

part b if the porsche accelerates at amax, what is its speed when it reaches maximum power output?

a = 6.53 m/s^2

v = 11.5689 m/s

Explanation:

Given data:

engine power is 217 hp

70 % power reached to wheel

total mass ( car + driver) is 1530 kg

from the data given

2/3 rd of weight is over the wheel

w = 2/3rd mg

maximum force

we know that F = ma

the new power is

solving for speed v

v = 11.5689 m/s

what was the answer?

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.