Solve each part of given problem:
Problem: The acceleration due to gravity on Mars is 3.8 m/s2.
Part A: If the Curiosity rover on Mars drops a tool from a height of 2.35 m, how long does it take to hit the ground?
Part B: If this tool were dropped on Earth from the same height, how long would it take to hit the ground?
Part C: From what height would you have to drop the tool on Earth so that the fall-time on both planets would be the same? Neglect air resistance on both Mars and the Earth.
Please use as much detail as required in solution.