Answer:
1. Understanding the motion of planets and satellites
2. Calculating the weight of objects
Step-by-step explanation:
Two applications of Newton's Law of Gravitation are:
1. Understanding the motion of planets and satellites: Newton's Law of Gravitation provides the mathematical framework to explain the motion of planets and satellites in the solar system. It describes how the force of gravity between two objects depends on their masses and the distance between them. By applying this law, scientists can accurately predict the orbits and trajectories of celestial bodies. For example, the motion of planets around the Sun and the trajectory of satellites around the Earth can be explained and calculated using this law.
2. Calculating the weight of objects: Newton's Law of Gravitation also helps us understand and calculate the weight of objects on Earth or any other celestial body with a significant gravitational field. The law states that the force of gravity acting on an object is directly proportional to its mass. Therefore, by knowing the mass of an object and the acceleration due to gravity, we can calculate its weight using the formula W = mg, where W is the weight, m is the mass, and g is the acceleration due to gravity. This application is useful in various fields, such as engineering, physics, and everyday life, where the weight of objects needs to be determined or taken into account.
In summary, Newton's Law of Gravitation finds application in understanding the motion of planets and satellites and calculating the weight of objects. These applications have significant implications in fields like astronomy, space exploration, engineering, and daily life calculations.