A locomotive engine pulls a train with a constant force. Comment on whether its acceleration will increase or decrease if more coaches are added to the train. Explain. When you drop a 2 kg iron weight and a 5 kg iron weight from a height, predict which one will fall first to the ground. Justify your answer

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?