I am having trouble determining what kinematic equation to use to solve this (physics). "A bowling ball has dropped on Jupiter from a height of 3 meters with an initial velocity of 0.4 m/s. The acceleration of gravity on Jupiter is 24.5 m/s^2. How much time does it take for the bowling ball to reach the surface of Jupiter?"
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An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill