A car is at velocity of 20 km/h. If the car traveled 120 km in 3 hours at constant acceleration, what is its final velocity?

lnkj

20km/h x 3hours = 60km/h

To find the final velocity of the car, we can use the equation:

Final velocity = Initial velocity + (acceleration * time)

In this case, the car has traveled 120 km in 3 hours, which means the average velocity is 40 km/h (120 km / 3 hours).

Now, we need to find the acceleration. We know the initial velocity is 20 km/h, and the time is 3 hours, so:

Average velocity = (Initial velocity + Final velocity) / 2

40 km/h = (20 km/h + Final velocity) / 2

Multiplying both sides by 2, we get:

80 km/h = 20 km/h + Final velocity

Subtracting 20 km/h from both sides, we have:

60 km/h = Final velocity

So, the final velocity of the car is 60 km/h.

Vf = 120km / 3h = 40 km/h.