From the free fall movement we have the following formulas: and , First we need to find the height to time iqual to 3.04 s using the formula: and remember that golf ball was released from the rest (Vo= 0 (m/s)) so , we get: h = -45.28 (m) with the height that we have got, now the velocity of the ball is calculate using solving for Vf, we get: replacing the values given , so we get: Vf = 29.79 (m/s).
The answer I believe is c Explanation During the day when temperatures are higher, the snow melts and water enters the cracks in the rock. When the temperature drops below 0°C the water in the crack freezes and expands by about 9 per cent. This makes the crack larger.