Recent content by phoizgood

"What is the condition for a collision?" When the two car's X_final equals to each other? correct? "If you plot speed vs. time for each vehicle, the area under the graph represents what quantity? Are those areas ever equal?" speed vs time graph, area under graph is acceleration right...

I need help understanding this question. I don't need the answer or anything, I just want some help visualizing, what's going on, what do I need to know, how do I get there, etc. Am I being confusing? Speedy Sue, driving at 30.0 m/s, enters a one-lane tunnel. She then observes a slow-moving...

need help with 2 probelms - 1 "simple" one 1) a 50.0 g superball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. a high-speed camera records this event. if the ball is in contact with the wall for 3.50 ms, what is the magnitude of the average acceleration of the ball...