Posted by **jamie** on Tuesday, December 9, 2008 at 4:26am.

A ball of mass m = 500g moves around a vertical axis with an angular speed ù. It is attached to two strings of length: the upper a = 30 cm and the lower b = 40 cm.Both strings are taut and perpendicular to each other. Each of the strings beaks if the tension exceeds 12.6 N. Which of the strings will break first and for what value of ù?

Can someone please direct me with this problem also, Im lost once again.

- physics -
**bobpursley**, Tuesday, December 9, 2008 at 7:47am
Centripetal force is w^2*m*radius

you need to calculate the radius from the dimensions.

Now, the component of force in each string can be found

tension upper= w^2 *r * m * sintheta where theta is the upper angle of the string triangle, or sintheta= 4/5

tension lower you do it.

## Answer This Question

## Related Questions

- physics - A doubly tethered model airplane of mass 1.0 kg is attached to a ...
- Physics - A 1.34‒kg ball is attached to a rigid vertical rod by means of ...
- Physics - a ball of mass m is attached by two strings to a vertical rod (lower ...
- Physics - a ball of mass m is attached by two strings to a vertical rod (lower ...
- Physics - a ball of mass m is attached by two strings to a vertical rod (lower ...
- physics - a 1.29 kg ball is connected by means of two massless strings to a ...
- science - A ball of mass m is attached by two strings to a vertical rod. as ...
- Physics - a 1.92 kg ball is connected by means of two massless strings, each of ...
- Physics - A 1.42 kg ball is connected by means of two massless strings, each of ...
- physics - The 4.00-kg block in the figure is attached to a vertical rod by means...

More Related Questions