To find the object's final velocity, we can use the equation:
final velocity = initial velocity + (net force / mass) * time
Given that the object has a mass of 2 kg, an initial velocity of 30 m/s, a net force of -4 N, and a time of 8 seconds, we can plug in these values:
final velocity = 30 m/s + (-4 N / 2 kg) * 8 s
Simplifying the equation, we get:
final velocity = 30 m/s + (-2 m/s^2) * 8 s
final velocity = 30 m/s - 16 m/s
final velocity = 14 m/s
So, the object's final velocity is 14 m/s.
hope this helps :)
