Question

1) A 1320 kg demolition ball swings at the end of a 34.3 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 3.32 m/s. Determine the tension in the cable.

F=ma

(34.3)(3.32) = 113.87
Ia this correct?

Answer 1

Tension= mg+mv^2/r

Yours is not correct.

Answer 2

so m=1320kg and v=3.32^2 but what is r and mg?

Answer 3

r = 34.3 m,
m•g=1320•9.8 =12936 N
v^2 =(3.32)^2 =11.02