Ima Scaarred (m=56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5-m high roller coaster loop.
a. Determine Ima's kinetic energy at the top of the loop.
b. Determine Ima's potential energy at the top of the loop.
c. Assuming negligible losses of energy due to friction and air resistance, determine Ima's total mechanical energy at the bottom of the loop (h=0 m).
d. Determine Ima's speed at the bottom of the loop.[/B]
The Attempt at a Solution
i tried to find b
help me understanding the question.
the answers are.
- Show Answer
b. 1.07 x 104 J
c. 1.53 x 104 J
d. 23.4 m/s