Guide to Newton's Laws - Essay Example

If an external force is not applied to us we tend to fly forward towards the windshield but if the external force of a seatbelt is applied we tend to keep grounds on the seat only. Newton’s 2nd Law The second law of Newton states the relationship between acceleration, force, and velocity. It states that if a force is exerted on a body with mass m then the body would only accelerate or decelerate in the direction of the relative forces. Hence it can be concluded that F=ma where f is a force, m is mass and a is acceleration.

A real-life example of the second law can be considered when the horsepower of a car is analyzed. If a car has a horsepower of 2300CC then it would move at a great speed. Similarly, if the mass of this car is increased then the speed would decrease in the same manner. And lastly, if the horsepower of the car is increased without changing the mass then the car would move at an even higher speed. Newton’s 3rd Law The third law of Newton states that every action has an opposite reaction which would try to oppose the action in real.

A real-life example of this law can be seen when we are swimming or rowing. It is seen that as we push the water behind the water exerts a force in response which helps us move ahead. Both action and reaction can be seen in this example.