The function h(t) = -4.9t2 + h0 gives the height (h), in meters, of an object t seconds after it falls from an initial height (h0). the table shows data for a pebble that fell from a cliff. time height 1 55.1 2 40.4 3 15.9 to the nearest tenth of a second, how long after the pebble falls will it hit the ground?