- #1
S.R
- 81
- 0
Homework Statement
A particle is moving along the graph of y=sqrt(x). At what point on the curve are the x-coordinate and the y-coordinate of the particle changing at the same rate?
Homework Equations
y = sqrt(x)
y' = 1/(2sqrt(x))
The Attempt at a Solution
The solution to the problem is to differentiate both sides of the eqn with respect to time and then determine when dy/dt = dx/dt.
But I don't understand how the x-coordinate has a rate of change since it's an independent variable? Can someone explain how to comprehensively understand the solution and I suppose, wording of this problem?
Thank-you.