Question

if the mass of an objet was 325g calculate the centripital force acting on the object when the radius is 2.2metres. the object is being spun in a circle.

Answer 1

force = mass * v^2 / r
= 0.325 v^2 / 2.2 Newtons

Answer 2

I know the formulae, but what is the velocity?

Answer 3

you have to know the velocity to calculate the force
you have two unknown variables here

Answer 4

not my fault

Answer 5

of course it's not your fault
the point is you haven't got enough information to find the value asked for

Answer 6

as you can imagine, the faster the object spins in a circle the greater the force will be