Problem #1. Marty and Doc Brown are traveling at 10 m/s in a DeLorean and are trying to catch a train that is traveling at a constant 39 m/s. At to, the train is ahead of DeLorean by d kilometers. After 5 seconds, Marty hits the accelerator. A. What is the minimum acceleration that the DeLorean must have to catch the train? B. What is the speed of the DeLorean relative to the train when it catches up?

Problem #1. Marty and Doc Brown are traveling at 10 m/s in a DeLorean and are trying to catch a train that is traveling at a constant 39 m/s. At to, the train is ahead of DeLorean by d kilometers. After 5 seconds, Marty hits the accelerator. A. What is the minimum acceleration that the DeLorean must have to catch the train? B. What is the speed of the DeLorean relative to the train when it catches up?