Sir Isaac Newton’s Laws of Motion mainly depict the relationships between the forces acting on a body and its resulting motions. Eventually, his 3 laws became the main foundations for classical mechanics. These laws may sound simple, but understanding their true essence often poses many challenges.
Luckily, pupils can easily book Physics homework help from Tophomeworkhelper.com (and other similar academic writing and tutoring platforms).
Explaining Newton’s 3 Laws
Newton’s First Law
The first law of motion describes objects’ behavior with external factors/influences. It states that whether a body remains at rest or is moving at a constant speed, it will stay at rest or move at constant speed in a straight line until some external force acts upon it. Introducing an additional external force will only result in the object’s velocity altering per the direction and magnitude of the force exerted. If you seek more physics homework solution/paper samples on Laws of Motion, Sign up with the above website.
Students can better understand the subsequent laws governing the intricacies of an object’s motion. They learn how an object reacts independently and how external factors influence its independent behavior.
Here’s Some Examples –
Instance 1 – A ball rolling down a slope will continue to roll down unless some external force halts it.
Instance 2- Similarly, when one hits the brakes, it causes the car to stop suddenly (the brake being an external factor causing a change in the object’s behavior).To stop the driver’s body movement, he must fasten the seatbelt (again, an external factor) to alter the natural forward momentum.
As a gist, the law helps learners better comprehend the object’s dynamics and behavior in the real world.
Newton’s 2nd Law (Mathematical formula: F=m x a)
The 2nd law of motion presents an in-depth quantitative understanding of changes that result from a force applied to a moving body. It clearly states that the rate of change of a body’s momentum is equal in both direction and magnitude to the force applied to it.
A body’s momentum equals the product of the mass along with its velocity. Velocity (like momentum) is a vector quantity comprising direction and magnitude. Whenever a force is exerted on a body, it changes the momentum’s magnitude, direction, or even both.
Considered as one of the most crucial laws of Physics, its mathematical formula is (F=m x a). M is the mass of a body, F is the force, and A is the acceleration. Whenever a body has a net force applied to it, it accelerates according to the equation. Alternatively, if the body does not accelerate, it means no external force is applied to it.
For Example – When you exert the same force to push a car and a truck, the car will experience slightly more acceleration than the truck. The reason is that the car has less mass compared to the truck. It means more force must be applied to objects with more mass, thus establishing the rate of momentum change.
Newton’s 3rd law (Concept of Action and Reaction)
The 3rd law states – every action has an equal and opposite reaction! Simply put, whenever two bodies collide, they apply force onto one another in equal momentum but result in an opposite reaction. Studying this crucial law gives students a proper understanding of Static Equilibrium, where all forces are uniform and balanced and apply to the bodies in accelerated and uniform motion. The commonest way to grasp its phenomena is by these 2 examples –
Instance 1 –When a book is kept on a table, the book applies a downward force, equalling the table weight. But the table also applies an equal yet opposing force to the book. The force results because the book’s weight made the table slightly deform; hence, it applied force back onto the book like some coiled spring.
Instance 2 – Throwing a rubber ball against the wall bounces off with equal force. The occurrence explains the force behind the ball colliding against the wall surface, thereby exerting force onto it and the wall applying an equal force to the ball, deflecting it back equally strong but in the opposite direction.
Homework Tips for Students to Remember
- Whenever learning the Laws of Motion, try to grasp its concepts with relatable examples easily available online.
- Never try to grasp all of them together when you sit down to study or do homework. Try to understand them individually, using professor’s notes, library textbooks, and other accessible academic papers on their coverage.
- Note down doubtful questions and clarity them from the professor after class. Note down everything they explain and fall back on it at home.
Look to connect with a top homework help service provider to get detailed samples and customized explanations from subject specialists.