Answer to Question #7744 in Mechanics | Relativity for gonzalo herrera
starts at 2.9 m/s at the top of the lynx run,
which is 106 m above the bottom.
What is her ﬁnal kinetic energy at the bottom of the ski run?
Answer in units of j (due in 3 hours)
What is her ﬁnal kinetic energy at the bottom of the ski run? Answer in units of J.
The final kinetic energy can be represented as
E = E0 + E1,
E0 = mV²/2 = 43.3*2.9²/2 = 182.0765 J
is the initial kinetic energy and
E1 = mgH = 43.3*9.8*106 = 44980.04 J
is the potential energy that turns to kinetic while moving down. So,
E = 182.0765 + 44980.04 = 45162.1165 J.
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