Whirling around a mass to find max force of tension

[totallyclone]

Homework Statement

An object of mass 3.0kg is whirled around in a vertical circle of radius 1.3m with a constant velocity of 6.0m/s. Calculate the maximum and minimum tension in the string.

mass=3.0kg
v=6.0m/s
radius=1.3m

Homework Equations

Fc=mv²/r
Fun=ma

The Attempt at a Solution

Here is my fbd where I show the mass when it is at the highest point and the lowest point.

When it reaches top:
ƩFy=ma_c
Fc-Fg-Ft=0
Fc-Fg=Ft
(mv²/r)-mg=Ft
Ft=53.7N ∴minimum tension

When it reaches bottom:
ƩFy=ma_c
Ft-Fg-Fc=0
Ft=Fg+Fc
Ft=mg+(mv²/r)
Ft=113N ∴maximum tension

 

[rude man]

Good! (I didn't check the math. The formulas are right).

 

[totallyclone]

Good! (I didn't check the math. The formulas are right).

Awesome! Good to hear! Once again, thanks for taking your time to look it over for any errors heh