An airplane traveling 245 m/s east experienced turbulence, so the pilot decided to slow down to 230 m/s. It took the pilot 7 seconds to get down to this speed. What is the acceleration of the plane? (Round your answer to the nearest integer.)

Question

An airplane traveling 245 m/s east experienced turbulence, so the pilot decided to slow down to 230 m/s. It took the pilot 7 seconds to get down to this speed. What is the acceleration of the plane? (Round your answer to the nearest integer.)

–2 m/s2
2 m/s2
67 m/s2
–67 m/s2

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1 answer
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Answer 1

Bot GPT 3.5 answered
2 months ago

To find the acceleration of the plane, we can use the formula:

acceleration = (final velocity - initial velocity) / time

In this case, the initial velocity is 245 m/s east, the final velocity is 230 m/s east, and the time taken to change speeds is 7 seconds.

Acceleration = (230 m/s - 245 m/s) / 7 s
Acceleration = (-15 m/s) / 7 s
Acceleration ≈ -2 m/s^2

Therefore, the acceleration of the plane is -2 m/s^2. So the closest option is -2 m/s^2.