A train has a 500,000 kg engine towing 20 cars on a level track. Each car has a mass of 100,000 kg. The train is speeding up at a rate of 0.1 m/sec2. The wheels of the train do not skid. What is the force in the coupling between the 10th and 11th cars (counting the car immediately behind the engine as car 1)? a) 50,000 N b) 100,000 N c) It cannot be detemined from the information given. d) 200,000 N

A train has a 500,000 kg engine towing 20 cars on a level track. Each car has a mass of 100,000 kg. The train is speeding up at a rate of 0.1 m/sec2. The wheels of the train do not skid. What is the force in the coupling between the 10th and 11th cars (counting the car immediately behind the engine as car 1)? a) 50,000 N b) 100,000 N c) It cannot be detemined from the information given. d) 200,000 N