Question

A car initially traveling at 15 meters per second north accelerates at a rate of 2 m/s² for 10 seconds. What is its final velocity?

A. 25 m/s north
B. 35 m/s north
C. 15 m/s north
D. 20 m/s north

Answer 1

The final velocity of a car initially traveling at 15 m/s north and accelerating at 2 m/s² for 10 seconds is 35 m/s north, which is option B.

Step-by-step explanation:

The student's question about the car's final velocity after acceleration refers to the concept of kinematics under the subject of Physics. To calculate the final velocity of the car, we use the formula v = u + at, where u is the initial velocity, a is the acceleration, and t is the time for which the acceleration is applied.

Given the car's initial velocity u as 15 m/s north, acceleration a as 2 m/s², and time t as 10 seconds, we can plug these values into the formula to find the final velocity:

v = u + at = 15 m/s + (2 m/s² × 10 s) = 15 m/s + 20 m/s = 35 m/s north

So, the car's final velocity after accelerating for 10 seconds is 35 m/s north, which corresponds to option B. This is the mentioned correct answer in the final answer.