I was trying to solve this question: In a scrap yard, a car of mass 1200 kg is suspended from a crane using an electromagnet of mass 1400 kg.When the electricity is turned off the car is dropped. Assuming the spring constant for the crane and the supporting cable is 3.5 MN/m, find the maximum tension in the cable after the car is dropped. Please, correct me if I am wrong, the tension in the wire after the car is dropped is acting upwards right? So the free body diagram would have the tension pointing upwards and the weight of the magnet pointing downwards? My lecturer has done this Fmax = kx + m(of the magnet)g I dont understand how he got this. An explanation would be very helpful Thanks!!