Robot Bull RidingThe Robot Bull is a application of Newton's First Law. By swinging strongly, the robot bull tend to throw the people riding it down its back. Because of Newton's Law, or Law of Inertia, the kid riding the bull has the inertia resisting his change in state of motion when the bull changes its state of motion. Thereby, the kid can be swung off the bull by his inertia, and game over. To stay longer on the bull back, one should low his back down on the bull back as much as possible, besides grabbing the the bull's corns tightly.
|
Wood Drilling ProblemFor drill the wood efficiently, a drill need to aim perpendicularly with the wood very precisely. When the angle is perfect, a strong strength is needed too. According to Newton's Third Law, the wood has a reaction with the drilling. The reaction force is perpendicularly on the drill, with the equal amount of Newton. Conclusively, Drilling wood is a hard job.
|