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Trigonometry rotating airplane propeller

karush

Well-known member
Jan 31, 2012
2,715
View attachment 1480

OK, want to see if I am using the use of rad properly here
the answer seems very small. but 35 degrees isn't much for all the rotations.

Answer not in book so hope these are correct..

thanks ahead.
 

topsquark

Well-known member
MHB Math Helper
Aug 30, 2012
1,123
View attachment 1480

OK, want to see if I am using the use of rad properly here
the answer seems very small. but 35 degrees isn't much for all the rotations.

Answer not in book so hope these are correct..

thanks ahead.
Looks good to me! (Sun)

-Dan
 

MarkFL

Administrator
Staff member
Feb 24, 2012
13,775
Your answers are correct, but I would give exact values instead:

a) \(\displaystyle \frac{190}{3}\pi\text{ rad}\)

b) \(\displaystyle \frac{7}{2280}\text{ s}\)