To solve the problem, we need to understand what principle of physics is demonstrated by the statement: "The golf ball remains at rest until it is struck by a golf club."
Explanation:
This statement reflects the concept of inertia, which is a fundamental part of Newton's First Law of Motion.
Newton’s First Law of Motion (Law of Inertia):
A body at rest will remain at rest, and a body in motion will remain in uniform motion in a straight line, unless acted upon by an external force.
In this case, the golf ball remains stationary (at rest) until an external force—the swing of the golf club—is applied to it.
Final Answer:
The statement indicates Newton’s First Law of Motion (Law of Inertia).
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).