Final answer:
In this case, the final velocity of the automobile is 35 m/s north.
The answer is option ⇒D
Step-by-step explanation:
To find the final velocity of the automobile, we can use the formula for uniformly accelerated motion:
Final velocity (v) = Initial velocity (u) + (acceleration * time)
Given:
- Initial velocity (u) = 15 m/s north
- Acceleration (a) = 2 m/s²
- Time (t) = 10 s
1. Determine the change in velocity:
The change in velocity is given by the product of acceleration and time:
- Change in velocity (Δv) = acceleration * time
- Change in velocity (Δv) = 2 m/s² * 10 s = 20 m/s
2. Calculate the final velocity:
To find the final velocity, we add the change in velocity to the initial velocity:
- Final velocity (v) = Initial velocity (u) + Change in velocity (Δv)
- Final velocity (v) = 15 m/s + 20 m/s = 35 m/s
Therefore, the final velocity of the automobile is 35 m/s north.
The answer is option ⇒D
Your question is incomplete, but most probably the full question was:
An automobile was moving at 15 m/s and accelerated at 2 m/s² for 10 s. Which of the following was its final velocity?
A. 17 m/s
B. 25 m/s
C. 27 m/s
D. 35 m/s