To calculate the speed (final velocity) of an object, we can use the equation:
v = u + at
where: v = final velocity (speed) u = initial velocity a = acceleration t = time
Let's calculate the speed when the initial velocity is 15 m/s and the acceleration is 2 m/s²:
v = u + at v = 15 m/s + 2 m/s² * t
Since we haven't specified a specific time, we can only provide a general equation. However, if you'd like to know the speed after 25 seconds, we can substitute t = 25 seconds into the equation:
v = 15 m/s + 2 m/s² * 25 s v = 15 m/s + 50 m/s v = 65 m/s
Therefore, the speed after 25 seconds will be 65 m/s.