can someone help me with this physics (centripetal force) problem?

Question

if you are swinging a string with washers tied to the end 2.0 meters off the floor with a motion that has a radius of 1.0 meters and a period of 1.5 econds, how far would the washers fly if the string broke?

Answer 1

It is uncertain when would the string breack (6 , 9 0r 12 o'clock position)
These equation you wil need.

F=ma
a=V^2/R
V=2piR/T

Time in vertical flight can be found from
h=V0t + 0.5gt^2 (compute t)
V0=V
then since the horizontal component remains unchanced
S=Vh t

Answer 2

I won't give you the answer, but I can tell you how to get it yourself.

Calculate the linear velocity of the washers from the facts you have. Then imagine that the string gets cut. At that instant the washers will fly off tangent to the circle at that velocity.

Then it's a simple ballistics problem. An object going a certain velocity parallel to the ground, 2 meters above the ground, will follow a certain trajectory toward the ground. Use the formulae you have for calculating the distance that will be travelled.