a dog runs down his driveway with an initial velocity of 4.0 m/s. the dog then accelerates at 2.5 m/s^2 for 5.0 s. what is the final velocity of the dog?
Vf = Vo + at,
Vf = 4 + 2.5*5 = 16.5m/s.
To find the final velocity of the dog, we need to use the equation of motion:
final velocity (v) = initial velocity (u) + (acceleration (a) * time (t))
Given:
Initial velocity (u) = 4.0 m/s
Acceleration (a) = 2.5 m/s^2
Time (t) = 5.0 s
Substituting the values into the equation, we get:
v = 4.0 m/s + (2.5 m/s^2 * 5.0 s)
Simplifying the equation:
v = 4.0 m/s + 12.5 m/s
v = 16.5 m/s
Therefore, the final velocity of the dog is 16.5 m/s.