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Physics word problem! HELP!?
Physics word problem! HELP!?
When the 10 km/hr bikes are 20 km apart, a bee begins flying from one wheel to the other at a steady speed of 30 km/hr. When it gets to the wheel it abruptly turns around and flies back to touch the first wheel, then turns around and keeps repeating the back-and-forth trip until the bikes meet, and squish!
How many kilometers did the bee travel in its total back-and forth trips?
4 Answers
- Anonymous9 years agoFavorite Answer
The bikes will be riding for 1 hour before they meet. During that hour the bee will fly 30km
- CarlLv 69 years ago
If we assume the bikes are traveling towards each other, they will meet in one hour. Since the bee flies at 30 km/hr, it will travel 30 km in the one hour it takes the bikes to meet.
- Anonymous5 years ago
enable's define a number of your variables first... VF = very final speed = 21 m/s VI = preliminary speed = 20 m/s T = replace in Time = 2 s M = Mass = 1500 kg Now... you are going to prefer a pair of equations to determine this one out. First, you are able to desire to appreciate that A = Acceleration = (replace in speed) / (Time) = (VF - VI) / (T) Substituting contained in the numbers from above.... A = (22 m/s - 21 m/s) / (2 s) A = a million/2 m/(s^2) 2nd - you are able to desire to appreciate that... stress = Mass * Acceleration - or - F= M*A substituting... stress = 1500 kg * (a million/2 m/s^2) stress = 750 kg*m/(s^2) ( FYI - a million kg*m/(s^2) = a million Newton = a million N ... for this reason 750 kg*m/(s^2) = 750 N ) answer - stress = 750 N wish that helps
