Asked by Please Please Help
Please help me with the following problem, I have submitted the answer: 88.2 and was told that it was incorrect. The word problem reads:
If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how many meters does it fall during the 4th and 5th seconds combined
Thank you
If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how many meters does it fall during the 4th and 5th seconds combined
Thank you
Answers
Answered by
Damon
Your equation is wrong
d = (1/2) 9.8 t^2 you forgot the 1/2
d = 4.9 t^2
after three seconds it has fallen
4.9 (9) = 44.1 m
after five seconds it has fallen
4.9 (25) = 122.5
122.5 - 44.1 = 78.4 meters
d = (1/2) 9.8 t^2 you forgot the 1/2
d = 4.9 t^2
after three seconds it has fallen
4.9 (9) = 44.1 m
after five seconds it has fallen
4.9 (25) = 122.5
122.5 - 44.1 = 78.4 meters
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