Recent content by MeghanReid

I'm having trouble with number 2 though.. The graph doesn't help me much, and I've been taught by my teacher to use formulas not graphs to solve word problems. For example: vf=vi+at d=vit+1/2at^2 are the 2 main formulas we use pretty much.

Okay thank you. I figured it out (:

I can't draw a speed time graph because I don't know the time. That's part of what I have to find in the question. I know I have to use the formulas to solve it and "compare" the two people and stuff, but I don't know how to do so.

1. A man is driving his new sports car at 120km/h while a girl is parked at a red light. At the moment the man passes the girl, the light turns green and the girl pulls away at the same time as the man passes. The girl accelerates at 45km/h. A) How long will it take the girl to catch the man...