HELP mE physics?
A 3.06 kg mass attached to a light string
rotates on a horizontal, frictionless table. The
radius of the circle is 0.408 m, and the string
can support a mass of 16.4 kg before breaking.
The acceleration of gravity is 9.8 m/s
What maximum speed can the mass have
before the string breaks?
Answer in units of m/s.
- ?Lv 74 weeks ago
What they probably meant is:
The string can support a tension force that is equal to the weight of a 16.4 kg mass on Earth.
So the maximum tension in the string if it is not to break is 16.4 * 9.81 N.
The tension provides the centripetal force necessary to keep the object going in a circle
(3.06 kg) (v^2) / r = F