Question

If the initial velocity of the car in the previous problem (the car accelerates at 5.00 km/hr/s for 3.50 sec) is 22.6 km/hr, what is the final velocity of the car?

1) 17.6 km/hr
2) 27.6 km/hr
3) 40.1 km/hr
4) 18.9 km/hr

Answer 1

The final velocity of the car is 40.1 km/hr.

Step-by-step explanation:

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

Vf = Vi + at

Where Vf is the final velocity, Vi is the initial velocity, a is the acceleration, and t is the time.

Given that the initial velocity (Vi) is 22.6 km/hr, acceleration (a) is 5.00 km/hr/s, and time (t) is 3.50 sec, we can substitute these values into the equation:

Vf = 22.6 + (5.00)(3.50)

Vf = 22.6 + 17.5

Vf = 40.1 km/hr

Therefore, the final velocity of the car is 40.1 km/hr, which matches option 3.