Asked by Michael
The sun is passing directly over an 80ft. tall building. The shadow is 60ft. long when the angle (theta) that the sun makes with level ground is increasing at the rate of .327 radians per minute. At what rate is the shadow decreasing. (express your answer in inches per minute, to the nearest tenth of an inch.)
PLEASE HELP. I AM EXTREMELY CONFUSED.
PLEASE HELP. I AM EXTREMELY CONFUSED.
Answers
Answered by
bobpursley
tantheta=distance/80
take the derivative of each side...
sec^2 Theta dTheta/dt=dx/dt *1/80
Solve for dx/dt
figure the triangle first: 60-80-100
sec Theta=60/100
and you have it.
check my work.
take the derivative of each side...
sec^2 Theta dTheta/dt=dx/dt *1/80
Solve for dx/dt
figure the triangle first: 60-80-100
sec Theta=60/100
and you have it.
check my work.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.