# Trigonometryrotating airplane propeller

#### karush

##### Well-known member
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..

#### topsquark

##### Well-known member
MHB Math Helper
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..

Looks good to me!

-Dan

#### MarkFL

a) $$\displaystyle \frac{190}{3}\pi\text{ rad}$$
b) $$\displaystyle \frac{7}{2280}\text{ s}$$