A) A ball is thrown vertically upward with a speed of 27.6 m/s from a height of 1.9 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s

B) How long does the ball take to hit the ground after it reaches its highest point?
Answer in units of s.

(Im just learning physics for the first time and still really confused on solving this. :( )

can anyone at all help me please?