Question: A fireman starts from rest with his feet 18.0 ft above the ground and slides down a pole with a downward acceleration of 10.0 ft/s2. After 1.20 s, the fireman grips the pole tighter to maintain an acceleration of 6.00 ft/s2 upward.
Part A: How fast will he be going when his feet touch the ground?
I need help to find how fast be going when his feet touch the ground.