Question

853N Tarzan is swinging around the jungle over rivers of Piranha fish. In one particular swing on a vine of

length 5.78m, his speed is 1.43 m/s when the vine makes a 0.82 radian angle with the vertical

( 2π radians=360, be sure to do a proper unit conversion to convert radians to degrees)

a Find his speed at the bottom of his swing.

(Steps: draw a clear picture, define the system, write the energy equation, etc.,)

b Find the tension in the vine when Tarzan is at the bottom of his swing.

(Hint: Tension is a force. You need a FBD+acc+coord. Apply N's 2nd law to the FBD. The tension in the

vine is not m g.

Ans 6.17m/s, 1429N

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Answer 1