A bird flies north at 20 #ms^-1# for 15second and then flies west at #25ms^-1# for 10second. Find the average acceleration for the whole trip. Solution???
1 Answer
Jun 14, 2017
Average acceleration:
Explanation:
Assuming the bird started at rest and stopped flying (returned to rest) at the end of its flight, any positive acceleration would need to be balanced by negative acceleration.
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It is entirely possible (maybe likely) that this question should have asked for the average velocity.
In this case the bird flew 300 m North and 250 m W over a period of 25 seconds;
or on average 12 m North and 10 m West per second
for an average of (using the Pythagorean Theorem)
at an angle of