- #1

- 4

- 0

**A**) Determine the magnitude and direction of the net force on the ball when it is at the top.

I know that ƩF=T=Fc but that's about all I can get. Can someone please help.

**B**) Determine the speed v initial of the ball at the top.

I did;

ƩF=T+mg= mv^2/L and since T=2mg+mg=3mg

so

3mg=mv^2/L

the masses cancel out and you take the square root of whats left so

v=the square root of 3lg