Hey, my teach and I have a disagreemnt on the answer. Can you help us out?(adsbygoogle = window.adsbygoogle || []).push({});

If I would to jump out of a stationary helicopter, various stages of fall are shown in positions a to f. Using Newton’s 2nd law. A= Fnet/m= W-R/m

Find my acceleration at each position. My mass is 100 kg so my weight is a constant 1000N. Air resistance ® varies with speed and cross-sectional area as shown.

(Sorry guys, but I can’t get the diagram up)

Position a. R=0; W=1000N, my acceleration would be 20m/s squared, 10m/s squared.

Position b. R= 400; W= 1000, my acceleration would be 12m/s squared, 6m/s squared.

Position c. R= 1000N; W= 1000N, my acceleration would be 0m/s squared,0m/s squared.

Position d. R= 1200N; W= 1000N, my acceleration would be –4m/s squared, -2m/s squared.

Position e. R= 2000N; W=1000N, my acceleration would be – 20 m/s squared, –10m/s squared.

Position f. R= 1000N; W= 1000N, my acceleration would be 0m/s squared, 0m/s squared.

My answer is underline. My teacher’s is in bold. Am I right or wrong?

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# Homework Help: Answer Dispute! Help me out?

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