huh?
the teacher has run 50 meters left
Teacher: 15 seconds after the buzzer, the teacher has 135 meters to finish. 32 seconds after he left the starting line, the teacher has run 50 meters left. Usian Bolt: 22 seconds after the buzzer, Usain has 189 meters to finish.36 seconds after the buzzer, he has 42 meters to finish. Who will win the race? How do you know? and What is the outcome of the race?
4 answers
the teacher has to run 50 meters more to finish*
Assuming that each runner left the starting line at the sound of the buzzer,
in 17 seconds, the teacher has run 85 meters.
in 14 seconds, Usain has run 147 meters.
Now you can figure each runner's speed. The time left to finish is distance/speed.
Now you have to add the remaining time to each runner's elapsed time to see who will end first.
I think you can tell who will win, since Usain's speed is almost twice as fast as the teacher's. But check to be sure.
in 17 seconds, the teacher has run 85 meters.
in 14 seconds, Usain has run 147 meters.
Now you can figure each runner's speed. The time left to finish is distance/speed.
Now you have to add the remaining time to each runner's elapsed time to see who will end first.
I think you can tell who will win, since Usain's speed is almost twice as fast as the teacher's. But check to be sure.
Illiterate America speaks again! LOL!