Answer:
11.8 m/s
Explanation:
From the question given above, the following data were obtained:
Initial velocity (u) = 0 m/s
Time (t) = 1.2 s
Acceleration due to gravity (g) = 9.8 m/s²
Final velocity (v) =...?
The velocity, v, with which the pebble hits the water can be obtained as follow:
v = u + gt
v = 0 + 9.8 × 1.2
v = 0 + 11.76
v = 11.76 ≈ 11.8 m/s
Thus, the pebble hits the water with a velocity of 11.8 m/s
