What is the concept of average force and how is it calculated?

AI Thread Summary
The concept of average force is calculated using the formula F = ma, where 'm' is mass and 'a' is acceleration. In this case, the airplane has a mass of 1150 kg and accelerates to a speed of 31 m/s over 7.3 seconds, resulting in an acceleration of approximately 4.25 m/s². This gives an average force of about 4883.6 N, which seems high compared to previous experiences with similar problems. The discrepancy may arise from differences in acceleration or other factors in those earlier examples. Understanding the correct application of the formula is crucial for accurate calculations of average force.
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Homework Statement



A 1150kg airplane starts from rest and accelerates forward for 7.3 seconds until it reaches its takeoff speed of 31m/s. What is the average force on the airplane during this time?

I tried F= ma, but I get a number that is far too large.
F= 1150kg times (31/7.3) = 4883.6N I tried on a similar problem with a similar weight and got an answer in the hundreds when the answer was simply 6N. Help please.
 
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Your answer is correct.
 

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