The discussion focuses on calculating Tarzan's speed at the bottom of a swing using conservation of energy principles. The vine length is 34.0 m, and the initial angle is 38.0° with the vertical. The correct approach involves determining the change in height using the formula Δh = 34 - 34cos(38°), leading to a final velocity of approximately 11.88 m/s when starting from rest. For the case where Tarzan pushes off with an initial speed of 2.00 m/s, the final speed is calculated to be 12.22 m/s.
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inky said:Hello Mandy,
You may use law of conservation of energy to find the velocity at the bottom.
(delta) h= 34-34cos38
so you canget v=11.88 ms-1 if g= 9.8 ms-2