Question

fill in the blank question the initial velocity of a car is 30 m/s westwards. after some time, the car is traveling 45 m/s westwards. during this interval, the car had a \\(\delta v = \\) \\(\boxed{}\\) m/s westwards.

Explanation:

Step1: Define velocity change formula

$\Delta v = v_f - v_i$

Step2: Substitute given values

$\Delta v = 45\ \text{m/s westwards} - 30\ \text{m/s westwards}$

Step3: Calculate the difference

$\Delta v = 15\ \text{m/s westwards}$

Answer:

15