Question
The mass of the roller coaster below is 80 kg. It starts from rest at a height of 30 m and reaches a speed of 20 m/s at point B. Assume no energy is lost due to dissipative forces such as friction. Also use g = 10 m/s2.
What is the total mechanical energy of the roller coaster cart at point A?
What is the total mechanical energy of the roller coaster cart at point A?
Answers
Energy is the same top and bottom, Ke at bottom, Pe at top
Pe = m g h = 80 * 10 * 30 Joules
the end.
Pe = m g h = 80 * 10 * 30 Joules
the end.
bot
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