$1$ EE $160$ Homework $11-$ Building$-$up a program... one layer at a time

Background:

An aircraft reaches a cruising speed of $180\frac{m}{s}($meters per second$),$ and the engine throttles

are set so that the power level is increased. The aircraft then starts to accelerate but the faster

it goes, the more aerodynamic drag it experiences $($in proportion to the square of the air

speed$).$ Eventually, the aircraft reaches a new top speed when the thrust force equals the

aerodynamic drag. The equations used to estimate the velocity and acceleration of the aircraft

from the time that the throttle is reset until the plane reaches its new cruise speed is as follows:

Velocity $=0\mathrm{.}000001$ time ${?}^{(}()3)-0\mathrm{.}00488$ time ${?}^{(}()2)+0\mathrm{.}75795$ time $+181\mathrm{.}3566$

Acceleration $=3-0\mathrm{.}000062$ Velocity ${?}^{(}()2)$

Velocity is in units of $\frac{m}{s},$ Acceleration is in $\frac{m}{s^2}$ and time is in $\text{'}$ s $\text{'}.$

Instructions:

Basic pseudocode & flowchart $-$ Write pseudocode to ask the user to enter a time value

in seconds. Compute & display the velocity and acceleration for that given time value.

Assume the user enters in a time value between $0$ and $120$ seconds. Complete the

flowchart for the above.

Basic source code $-$ Write the C code, compile and test it$.$ Save$/$submit this C code as

hw$11$a$.$c

Error$-$handling pseudocode & flowchart $-$ Display an appropriate error message to the

user if the input time is negative or above $120$ seconds. Think about how to modify the

existing pseudocode & flowchart. At what point do you add the $\text{'}$if$\text{'}$ statement? Save this

new pseudocode $+$ flowchart.

Error$-$handling source code $-$ Change your source code, compile and run it to test it$.$

Save and submit this $C$ code as hw$11$b$.$c

Planning for even more error$-$handling $-$ Display an appropriate error message to the

user if a non$-$numerical input is entered $($in C syntax, this would use isdigit$()).$ You only

need to submit the updated flowchart & pseudocode.

Test$-$dataset $-$ when all the above is complete, you can test the source code for hw$11$b$.$c using

the following test dataset. Submit the run$-$output so that it can be graded:

Time input of $0\mathrm{.}23$ seconds,

Time input of $3\mathrm{.}891555666$ seconds,

Time input of $25$ seconds,

Time input of $-3$ seconds,

Time input of $12000$ seconds,

Time input of "abc".

Deliverables:

This homework is due Monday

EE $160$ Homework $11$ Building$-$up a program... one layer at a time

Background:

An aircraft reaches a cruising speed of $180$ m$/$s $($meters per second$),$ and the engine throttles

are set so that the power level is increased. The aircraft then starts to accelerate but the faster

it goes, the more aerodynamic drag it experiences $($in proportion to the square of the air

speed$).$ Eventually, the aircraft reaches a new top speed when the thrust force equals the

aerodynamic drag. The equations used to estimate the velocity and acceleration of the aircraft

from the time that the throttle is reset until the plane reaches its new cruise speed is as follows:

Velocity $=0\mathrm{.}000001$ time$30\mathrm{.}00488$ time$2+0\mathrm{.}75795$ time $+181\mathrm{.}3566$

Acceleration $=30\mathrm{.}000062$ Velocity$2$

Velocity is in units of m$/$s$,$ Acceleration is in m$/$s$2$ and time is in $$s$.$

Instructions:

$1.$ Basic pseudocode & flowchart $-$ Write pseudocode to ask the user to enter a time value

in seconds. Compute & display the velocity and acceleration for that given time value.

Assume the user enters in a time value between $0$ and $120$ seconds. Complete the

flowchart for the above.

$2.$ Basic source code $-$ Write the C code, compile and test it$.$ Save$/$submit this C code as

hw$11$a$.$c

$3.$ Error$-$handling pseudocode & flowchart $-$ Display an appropriate error message to the

user if the input time is negative or above $120$ seconds. Think about how to modify the

existing pseudocode & flowchart. At what point do you add the $$if$$ statement? Save this

new pseudocode $+$ flowchart.

$4.$ Error$-$handling source code $-$ Change your source code, compile and run it to test it$.$

Save and submit this C code as hw$11$b$.$c

$5.$ Planning for even more error$-$handling $-$ Display an appropriate error message to the

user if a non$-$numerical input is entered $($in C syntax, this would use isdigit$()).$ You only

need to submit the updated flowchart & pseudocode.

Test$-$dataset $$ when all the above is complete, you can test the source code for hw$11$b$.$c using

the following test dataset. Submit the run$-$output so that it can be graded:

$$ Time input of $0\mathrm{.}23$ seconds,

$$ Time input of $3\mathrm{.}891555666$ seconds,

$$ Time input of $25$ seconds,

$$ Time input of $-3$ seconds,

$$ Time input of $12000$ seconds,

$$ Time input of $$abc$.$

Deliverables:

$1.$ flowchart $11$a $+$ pseudocode $11$a $4$ points

$2.$ hw$11$a$.$c $($basic source code$)4$ points

$3.$ flowchart $11$b $+$ pseudocode $11$b $4$ points

$4.$ hw$11$b$.$c $($error$-$handling #$1)4$ points

$5.$ flowchart $11$c $+$ pseudocode $11$c $($error$-$handling #$2)4$ points