Multiple choice A stone is dropped from a cliff. What will be its speed after falling 100 m? 9.8 m/s 44.2 m/s 19.6 m/s 98 m/s Zero Reveal answer Fill a bubble to check yourself B Correct answer Explanation Yes, it is the correct answer. h = 100 m u = 0 v2 = u2 + 2gh = 0 + 2 x 9.8 x 100 v2 = 1960 thus v = 44.2 m/s