locations at average speeds of 3 meters per second and 5 meters per second respectively. How long is it until the bees meet for the first time? How long isi it until they meet for the second time? HELP PLEASE. DUE TOMORROW!
2006-09-18 15:27:38 · 3 answers · asked by sillymelody427 1 in Education & Reference ➔ Homework Help
They are moving towards each at a speed of 8 m/s (5 + 3 m/s) so they would reach the same point at 150/8 = 18.75 sec
For the second part, the first bee would reach the end at 50 sec )150/3) and the second at 30 sec (150/5). During this 20 second difference the second bee would have turned around travelled 100 m (5*20) putting them 50 m apart. They would meet at 6.25 sec later. Therefore they meet 37.5 seconds (50s + 6.25s - 18.75 s) after the first meeting.
2006-09-18 15:37:14 · answer #1 · answered by tsihilin 3 · 0⤊ 0⤋
Given: speed of 1st bee = 3 meters per second; speed of 2nd bee = 5 meters per second; total distance between two locations = 150 meters.
If x1 is the time that has elapsed before they meet for the first time, then distance covered by 1st bee = 3x1; and distance covered by 2nd bee = 5x1. 3x1 + 5x1 = 150; 8x1 =150; x1 =150/8 or 18.75 seconds.
If x2 is the time that has elapsed before they meet for the second time, then distance covered by 1st bee = 3x2; and distance covered by 2nd fee = 5x2. 3x2 +5x2 =150(2); 8x2 =300 ; x2 = 300/8 or 37.5 seconds.
Notes: We multiply 150 by 2 because they will meet on the 2nd lap. In x1, the no. 1 is supposed to be a subscript; in x2 the no. 2 is likewise a subscript.
2006-09-18 16:29:53 · answer #2 · answered by tul b 3 · 2⤊ 0⤋
Two Bees
2016-11-09 08:28:13 · answer #3 · answered by ? 4 · 0⤊ 0⤋