8.20 m 2.00 m FIGURE P5.30 (c5p30) A bead of mass m 8.0 kg is released from poin

Question

8.20 m 2.00 m FIGURE P5.30 (c5p30) A bead of mass m 8.0 kg is released from point A, where H 6.8 m and slides on the frictionless track shown in Figure P5.30. Determine (a) the bead's speed at point B 8.40 m/s (in m/s) A 8.40 3:9.83, C:11.50 D 13.45. E: 15.74 F: 18.42 G: 21.55 H: 25.21 - - You are correct. Your receipt no. is 156-29332 ous Tries Determine (a) the bead's speed at point C. 9.70 m/s (in m/s) E: 15.531 ,F: 18.18 G: 21.2- H: 24.88 A: 8.29|OB: 9.7 C: 11.35| You are correct. Your receipt no. is 156-3610 D: 13.28] Previous Tries (b) Determine the net work done by the force of gravity in moving the bead from A to C (in )) OA: 123.44 OB: 178.99 OC: 259.53 OD: 376.32E: 545.66 OF: 791.21G: 1147.26 H: 1663.52

Explanation / Answer

Work done by the gravity =. Gravity force × net displacement

Or it is the net change in potential energy =mg(ha - hb)

W = 2×9.8×(6.8-4.8) = 376.32 Jolie

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