Question

read the scenario and decide which of newtons law it represents. halleys comet passes by the earth approximately every 75 years in its orbit around the sun. this is newtons law. 1st- law of inertia 2nd- law of acceleration 3rd- law of action reaction

Explanation:

Newton's first law (Law of Inertia) deals with objects in motion staying in motion in a straight - line path unless acted upon by an external force. The second law relates force, mass, and acceleration. The third law is about action - reaction pairs. Halley's Comet's orbit around the Sun is due to the gravitational force (an external force) acting on it. According to Newton's law of universal gravitation, the Sun's gravitational pull keeps the comet in an elliptical orbit. This is related to the concept of centripetal force which is part of the application of Newton's laws in circular/elliptical motion. The motion of the comet in its orbit is a result of the balance between its inertia (wanting to move in a straight - line) and the gravitational force pulling it towards the Sun. This is best described by Newton's first law as the comet would move in a straight - line in the absence of the Sun's gravitational pull.

Answer:

1st - Law of Inertia