Posted by **Anonymous** on Saturday, June 5, 2010 at 11:20pm.

As your bus rounds a flat curve at constant speed, a package with mass .5 kg, suspended from the luggage compartment of the bus by a string 45 cm long, is found to hang at rest relative to the bus, with the string making an angle of 30 degrees with the vertical. In this position, the package is 50 m from the center of curvature of the curve. What is the speed of the bus?

- college physics -
**drwls**, Sunday, June 6, 2010 at 12:07am
Let T be the tension force in the string.

Apply vertical and horizontal force balances.

T cos 30 = weight = M g

T sin 30 = centripetal force = M V^2/R

Divide one equation by the other. This will eliminate the unknown T

tan 30 = V ^2/(Rg)

Solve for V

- college physics -
**Anonymous**, Sunday, June 6, 2010 at 12:18am
Thanks!

My answer was 16.8 m/s. Is that correct?

## Answer This Question

## Related Questions

- college physics - As your bus rounds a flat curve at constant speed, a package ...
- Physics - As your bus rounds a flat curve at constant speed, a package with mass...
- physics - As your bus rounds a flat curve at constant speed, a package with mass...
- Physics - You are riding in a school bus. As the bus rounds a flat curve at ...
- physics - You are riding in a school bus. As the bus rounds a flat curve at ...
- AP Physics - Jack is 12m from the bus and is running towards the bus at a ...
- Physics? clueless on what to do - Jack is 12m from the bus and is running ...
- grade 11 physics - Cathy takes the bus home from work. In her hand she holds a 2...
- physics - A passenger on a stopped bus notices that rain is falling vertically ...
- PHYSICS - A student is running at her top speed of 4.6 m/s to catch a bus, which...

More Related Questions