At 8: 10am, train a leaves it's station heading east at 6m/s. at 8: 15am, train b pulls away from its station and accelerates at 0.05m/s^2. where does train b catch up to train a

A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s