how to find instantaneous velocity from displacement-time graph?
The instantaneous velocity can be found by calculating the slope of the tangent line to the displacement-time graph at a specific point in time.
To calculate the slope of the tangent line, choose a point on the displacement-time graph and draw a horizontal line to intersect with the graph at that point. Then draw a tangent line that touches the graph at that point, and find the slope of that tangent line. The slope of the tangent line represents the instantaneous velocity at that point in time.
Alternatively, you can use calculus to find the derivative of the displacement-time function, which will give you the instantaneous velocity at any point in time.