A 20-g bead is attached to a light 120 cm-long string as shown in the figure. If the angle α is measured to be 18°, what is the speed of the mass?
A) 0.55 m/s
B) 2.0 m/s
C) 3.8 m/s
D) 1.3 m/s
E) 1.1 m/s

Question

A 20-g bead is attached to a light 120 cm-long string as shown in the figure. If the angle α is measured to be 18°, what is the speed of the mass? 
A) 0.55 m/s 
B) 2.0 m/s 
C) 3.8 m/s 
D) 1.3 m/s 
E) 1.1 m/s

Quizplus · Accepted Answer

The Answer of A 20-g bead is attached to a light 120 cm-long string as shown in the figure. If the angle α is measured to be 18°, what is the speed of the mass? 
A) 0.55 m/s 
B) 2.0 m/s 
C) 3.8 m/s 
D) 1.3 m/s 
E) 1.1 m/s

A 20-G Bead Is Attached to a Light 120 Cm-Long