Please help with a and b

Enc has extra fruit from a fundraiser and plans on bringing them ice shing. He starts by tying a light rope between the two ] crates and begins pulling the crates across fresh, smooth lake Ice just formed after a cold snap. The masses of the crates are labeled m1 = 17.15 kg and m2 = 28.05 kg. Eric pulls with a force of F = 151.2 N on the 28.05-kg crate. (i) (a) Determine the acceleration of each crate and the tension in the connecting rope. acceleration of m 1 m/s2 l acceleration of m2 m/s2 tension in the rope in the middle . N (b) Eric forgot his bait and has to go back to his car. When he gets there, the crates have to be. pulled pulled across very smooth cement. But, the cement isn't frictionless like the ice. The coefcient of friction is now 0.12. Find the new accelerations and tension in the connecting rope if Eric keeps pulling with the same force. acceleration of m1 m/s acceleration of m2 m/s tension in the rope in the middle ~ N