Posted by **Nilan** on Saturday, February 25, 2012 at 10:36am.

In 9.7 s a fisherman winds 2.1 m of fishing line onto a reel whose radius is 30 cm (assumed to be constant as an approximation).

The line is reeled in at constant speed.

Determine the angular speed of the reel in rad/s.

Thank you.

- Physics - still confused -Please help -
**drwls**, Saturday, February 25, 2012 at 11:32am
The velocity of pulling in the line is is

V = w * R , which means

Linear speed = (Angular speed)*(Radius)

= 2.1m/9.7s = 0.2165 m/s

Angular speed = 0.2165/0.3

= 0.7216 rad/s

- Physics - still confused -Please help -
**Damon**, Saturday, February 25, 2012 at 11:34am
r = .30 meters

2 pi r = 1.88 m

2.1/1.88 = 1.11 revolutions

1.11 * 2 pi = 7 radians

7 radians / 9.7 s = .722 rad/s

## Answer This Question

## Related Questions

- Physics - In 9.7 s a fisherman winds 2.1 m of fishing line onto a reel whose ...
- physics - In 8.6 s a fisherman winds 2.7 m of fishing line onto a reel whose ...
- physics - In 9.2 s a fisherman winds 2.1 m of fishing line onto a reel whose ...
- Physics - A fisherman is fishing from a bridge and is using a "49.0-N test line...
- physics - A fisherman is fishing from a bridge and is using a "51.0-N test line...
- physics - A fish takes the bait and pulls on the line with a force of 2.7 N. The...
- physics - A fish takes the bait and pulls on the line with a force of 2.6 N. The...
- Physics - A fish takes the bait and pulls on the line with a force of 2.2 N. The...
- physics - A fisherman yanks a fish out of the water with an acceleration of 2.4 ...
- physics - A cylindrical ﬁshing reel has a mass of 0.899 kg and a radius ...

More Related Questions