Question: displacement between two people walking one of wich has a constant veloctiy and the other a constant acceleration

displacement between two people walking one of wich has a constant veloctiy and the other a constant acceleration

initially ted is at x= 100 meters . He walks in the - x diretion with a constant speed of 1.5 meters\ second initially mary is at x=0. her initial speed is 0 but she is accelerating in the + x diretion. her acceleration is a constant a=.5 meters \ second \second . at what value of x will ted and mary meet . how fast will mary be going when they meet.

Date Posted: September 25, 2007 Tagged Under: velocity and accalaration
Rating:
n/a

Heather, I haven't done this kind of problem in long time. Here are a couple of suggestions:

I think that you need to use two different kinematic equations and set them equal to each other. From this solve for the time in which they meet. Next plug the time back into the one of the original equations to solve for x or the distance they meet at. Does this make sense? I will keep looking at too.

Also if you put more specific tags and make sure to separate each one with a comma the question will be sent to the right people. ie you have velocity and acceleration and one long tag and it is unlikely anyone else will have that as a tag. Try (physics, acceleration, velocity). Hope this helps!