Physics please help me!?

Question

How do i solve this problem. I've been trying to figure it out for the longest time i don't understand it! Please explain to me how to do this!

"An object has a mass of 2kg. It is being swung in a circular path. The speed of the mass is 2m/sec.

-A. What is the force applied to keep the object moving in a circular path?
B. What is the period of rotation?
C. What is the centripetal acceleration of the mass.

***How do i solve this problem?***
please help!

Answer 1

One thing we are missing is radius of the path

Centripital force or the is due to centripital acceleration
a=V^2/R
this force is
F=ma

Let's ussume we know the radius then

A. The =force applied that keeps the object moving is 0
The centripital force is F=ma=mV^2/R

B. The perion of rotation = time for one revolution

S=2PiR
where Pi - 3.14...
t=T=S/V=2PiR/V

C. already derived
a=V^2/R