5.5. Compare the tension in the coupling between the first two cars in a train with the tension in the coupling between the last two cars when (a) the train's speed is constant and (b) the train is accelerating. 5.6. (a) What is the weight of 6 kg of potatoes? (b) What is the mass of 6 N of potatoes?

A body of mass 2.00 kg is pushed straight upward by a 25.0 N vertical force. What is its acceleration?

In Figure 5.12, the net external force on the 24-kg mower is given as 51 N. If the force of friction opposing the motion is 24 N, what force F(in newtons) is the person exerting on the mower? Suppose the mower is moving at 1.5 m/s when the force Fis removed. How far will the mower go before stopping?

While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?