The iron ball shown is being swung in a vertical circle at the end of a 0.7-m string. How slowly, in ft/s, can the ball go through its top position without having the string go slack?
A) 1.3 m/s
B) 2.6 m/s
C) 3.9 m/s
D) 6.9 m/s
E) 9.8 m/s

Question

The iron ball shown is being swung in a vertical circle at the end of a 0.7-m string. How slowly, in ft/s, can the ball go through its top position without having the string go slack? 
A) 1.3 m/s 
B) 2.6 m/s 
C) 3.9 m/s 
D) 6.9 m/s 
E) 9.8 m/s

Quizplus · Accepted Answer

The Answer of The iron ball shown is being swung in a vertical circle at the end of a 0.7-m string. How slowly, in ft/s, can the ball go through its top position without having the string go slack? 
A) 1.3 m/s 
B) 2.6 m/s 
C) 3.9 m/s 
D) 6.9 m/s 
E) 9.8 m/s

The Iron Ball Shown Is Being Swung in a Vertical