Question

a body Falls freely downwards from a certain height show graphically the relation between the distance fallen and square of time how will you determine G from the graph

Answer 1

Height, h = 1/2 * g * t^2

As height and t^2 are directly proportional, the shape of the graph is a straight line passing through origin and inclined to the axis.

From the above expression, it is clear that g = 2 (h / t^2) = 2 * slope of the graph

The acceleration due to gravity is obtained by multiplying the slope of the graph with number 2.

The graph is shown in the figure given below.