On a distant planet, an astronaut drops a steel ball from a height of h meters. He observes that the ball takes t seconds to reach the surface of the planet. The distance that the ball falls from the starting point is registered with the instruments that it carries in its spaceship, with this, it generates the table that is shown below. Using the given data, determine the gravitational acceleration corresponding to the planet on which the astronaut is located. Write the answer using two significant figures. Do not write the units.

h,m t,s
0 0
6 2
24 4
54 6
96 8
150 10