Question

(a) state the principal of the conservation of mechanical energy.
(b) Tarzan and Jane , whose total mass is 150 kg, start their swing on a vine 5.0 m long such that the vine is initially at an angle of 30 deg below the horizontal. At the bottom of the arc, Tarzan releases Jane, whose mass is 50 kg, with zero kinetic energy. What is the maximum height of the tree branch above the bottom of the arc that Tarzan can land on as his swing continues?

Answer 1

a) principal of conservation of mechanical energy states that the total mechanical energy of a system remains constant in the absence of dissipative forces

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