Mr. Maloney's pendulum is swing back and forth. He has a 1 kg mass on the end, the string length is 2 meters, and he started it by pulling it back 35 degrees, determine:
a. The initial potential energy
b. Speed at the bottom
c. Speed half way to the bottom
d. How high would it go if a student have it a 3 m/s push
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1kg*9.8*2=19.6 kg m2 / s2
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