To practice Problem-Solving Strategy 7.1 for interacting-objects problems.
A 1290 - car pushes a 2120 - truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4520 . Take the friction between the truck's...
boat's sails. This force is d? As a sailboat sails 55.5 m due north, a breeze exerts a constant force F1 on the boat's sails. This force is directed at an angle west of due north. A force F2 of the same magnitude directed due north would do the same amount of work on the sailboat over a distance...
proportional to the square of my spe? When I ride my bike in still air, the air resistance exerts a force on me proportional to the square of my speed. The amount of energy I use to pedal to overcome this is proportional to the product of the force of the air resistance and the distance I...
proportional to the square of my spe? When I ride my bike in still air, the air resistance exerts a force on me proportional to the square of my speed. The amount of energy I use to pedal to overcome this is proportional to the product of the force of the air resistance and the distance I...