Hi, I'm new here and I was really hoping someone would beable to help me ... Well theres two questions basically and I've literally been trying for hours to work them out. Well here goes: Two cars are travelling towards each other with equal speeds of 35m/s. When they are 500m apart they both decide to brake. a) what minimum equal decelerations would they require just to avoid an accident? The brakes on one car fail and it continues with the same speed. The other car slows down and at the point of collision it has just stopped b) what distances have the two cars travelled when the collision occurs? c) what time has elapsed? :uhh: are you ment to use simultaneous equations? The other one is: A police car stationary on the side of the road sees a car passing at 40m/s. the police car immediately gives chase and accelerates at 3m/s/s for 16s, followed by a constant speed. a) how long does it take for the police car to catch up the speeding motorist? b) what distance will the police car have travelled? Please help if you can - I challenge you!