Let's say you're driving in your car, approaching a red light on the Camp Hill Bypass. A black Porsche is stopped at the light in the right lane, but there's no-one in the left lane, so you pull into the left lane. You're traveling at 40 km/hr, and when you're 15 meters from the stop line the light turns green. You sail through the green light at a constant speed of 40 km/hr and pass the Porsche, which accelerated from rest at a constant rate of 3 m/s2 starting at the moment the light turned green.

Question

Let's say you're driving in your car, approaching a red light on the Camp Hill Bypass. A black Porsche is stopped at the light in the right lane, but there's no-one in the left lane, so you pull into the left lane. You're traveling at 40 km/hr, and when you're 15 meters from the stop line the light turns green. You sail through the green light at a constant speed of 40 km/hr and pass the Porsche, which accelerated from rest at a constant rate of 3 m/s2 starting at the moment the light turned green.
(a) How far from the stop line do you pass the Porsche?
(b) When does the Porsche pass you?

Jake · Answer

(c) If a Boston police officer happens to get you and the Porsche on the radar gun at the in-stant the Porsche passes you, will either of you be pulled over for speeding? Assume the speed limit is 50 km/hr.

Jake · Answer

anyone good at physics? Help with this and my other question. Thankyou