FIGURE 6-15 -A 20.0-Gram Mass Is Attached to a 120 Cm-Long String

question 56

Multiple Choice

FIGURE 6-15
-A 20.0-gram mass is attached to a 120 cm-long string as shown in Figure 6-15. The angle α is measured to be 18.0°. What is the speed of the mass?

• A) 0.545 m/s
• B) 1.95 m/s
• C) 3.82 m/s
• D) 1.18 m/s
• E) 1.09 m/s