Physics, 08.11.2019 11:31, alexisss23

# Part one:

you are driving at the speed of 26.3 m/s

(58.844 mph) when suddenly the car in front

of you (previously traveling at the same

speed) brakes and begins to slow down with

the largest deceleration possible without skidding. considering an average human reaction,

you press your brakes 0.519 s later. you also

brake and decelerate as rapidly as possible

without skidding. assume that the coefficient

of static friction is 0.811 between both cars’

wheels and the road.

the acceleration of gravity is 9.8 m/s

calculate the acceleration of the car in front

of you when it brakes.

answer in units of m/s^2.

part two: calculate the braking distance for the car in

front of you.

answer in units of m.

part three:

find the minimum safe distance at which you

can follow the car in front of you and avoid

hitting it (in the case of emergency braking

described here).

answer in units of m

Answers: 2

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Air is first compressed adiabatically from 100 kpa and 300 k to 1500 kpa and a specific volume of 0.1m^3/kg. the air is then cooled at constant volume back to 300 k. a) draw and label the processes on a p-v diagram. b) determine the work per unit mass from state 1 to state 2. c) determine the heat per unit mass from state 2 to state 3. d) list the mandatory assumptions to solve this problem.

Answers: 3

Part one:

you are driving at the speed of 26.3 m/s

(58.844 mph) when suddenly the car i...

you are driving at the speed of 26.3 m/s

(58.844 mph) when suddenly the car i...

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