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A car is moving at 11.0 m/s west starts to accelerate at 2.00 m/s² west. What is the final velocity of the car after accelerating for 8.0 s​?

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Final answer:

The final velocity of the car after accelerating for 8.0 seconds is 27.0 m/s west, which is calculated using the kinematic equation v = u + at where the initial velocity (u) is 11.0 m/s, acceleration (a) is 2.00 m/s², and time (t) is 8.0 s.

Step-by-step explanation:

To calculate the final velocity of a car after it has accelerated for a certain time, you can use the following formula from kinematics:

v = u + at

Where:

  • v is the final velocity
  • u is the initial velocity
  • a is the acceleration
  • t is the time

In this case, the car is moving at 11.0 m/s west and begins to accelerate at 2.00 m/s² west for 8.0 s. Inserting these values into the formula gives:

v = (11.0 m/s) + (2.00 m/s²)(8.0 s)

v = 11.0 m/s + 16.0 m/s

v = 27.0 m/s

Therefore, the car's final velocity after accelerating for 8.0 s is 27.0 m/s west.

User Stefan Neubert
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