To determine the vertical velocity of an object thrown downward, we need to consider the acceleration due to gravity. Assuming the object experiences free fall and neglecting air resistance, the acceleration due to gravity can be approximated as -9.8 m/s² (negative because it acts downward).
Given: Initial velocity (u) = 25 m/s (thrown downward) Time (t) = 2.0 s
We can calculate the vertical velocity (v) using the equation:
v = u + (a * t)
Plugging in the values:
v = 25 m/s + (-9.8 m/s²) * 2.0 s v = 25 m/s - 19.6 m/s v = 5.4 m/s
Therefore, the vertical velocity of the object thrown downward at 25 m/s² after 2.0 seconds is approximately 5.4 m/s.