You are on a boat in the middle of the Pacific Ocean at the equator traveling in a hydrofoil going at a constant speed of 300 m/s. The water is perfectly still. What is your acceleration:

a) If you're heading due North?

b) If you're heading due East?

c) If you're heading straight up (something probably went wrong at this point).

You may assume the following:

The earth has a radius of 6371 km.The earth makes one full revolution every 24 hours.The gravitational constant at sea level is 9.81 m/s2. East and North are relative to the Earth's axial north, not magnetic north.