Question

A certain string can withstand a maximum tension of 44 N without breaking. A child ties a 0.35 kg stone to one end and, holding the other end, whirls the stone in a vertical circle of radius 0.91 m, slowly increasing the speed until the string breaks.

(a) Where is the stone on its path when the string breaks?

*at a random point on the path

*at the lowest point on the path   

*cannot be determined

*at the highest point on the path It is not this one

b) What is the speed of the stone as the string breaks?
_________________m/s

Answer 1