How long does it take the second hand of a clock to move through 3.57 rad?
Answer in units of s.

I don't know

Explanation:

I really don't know im just doing the tutorial lol

Its angular velocity is  

π

30

radians per second (about 0.105 radians/s.

Explanation:

Explanation:

Think of it like this:

There are  

2

π

radians in one complete rotation, and that takes the second hand 60 seconds to complete.

So, the rate of rotation (the angular velocity) is

2

π

/60 = pi/30 radians per second# which is about 0.105 radians per second.

it doesn't. it was imagined up in the middle ages.

it's a b and