Question

Review The spring has a stiffness k = 50 N/m and an unstretched length of 0.3 m It is attached to the 2.8-kg smooth collar and the collar is released from rest at A (@= 0°). The motion occurs in the horizontal plane. Neglect the size of the collar. (Figure 1) Part A Determine the speed of the collar when = 60° Express your answer to three significant figures and include the appropriate units. Figure < 1 of 1 > OCH MÅR O O ? v= Value Units Submit Request Answer 2 m Provide Feedback Next > a k = 50 N/m

Answer 1

Solution: diameter, d = ar = 2(2) = 4m Streeren at position - A ; XA= 4-0.37 = 3.7m Stretch at positeon - B; X8= 4 cos 60'- 0.3=1.7 m By conservation of energy; TATUA = TB + UB * 0+ {kx = {mve + {kxe? Vos y Kexoʻ-xo) - 50(3.72_1-12) 2.8 =VR = 13.887 ms The speed of color when = 60° ce v- 13.887 m/s Hope This Helps. Thumbs up please. Thank you