The potential energy of a particle Varies with distance x from a fixed...
Understanding the Problem:
We are given the potential energy of a particle, which varies with distance x from a fixed point. The equation for the potential energy is given as u = A√x by x², where A and B are constants.
Breaking Down the Equation:
Let's break down the equation to understand it better:
u = A√x by x²
Here, A is a constant and represents the amplitude of the potential energy.
√x represents the square root of x, which means the potential energy is proportional to the square root of x.
x² represents the square of x, which means the potential energy is inversely proportional to the square of x.
Finding the Dimension of AB²:
To find the dimensions of AB², we need to analyze the dimensions of each term in the equation.
Dimension of u:
The dimension of potential energy, u, is given by [M L² T⁻²], where M represents mass, L represents length, and T represents time.
Dimension of √x:
The dimension of √x is given by [L^(1/2)], as it is the square root of length.
Dimension of x²:
The dimension of x² is given by [L²], as it is the square of length.
Combining the Dimensions:
Now, let's combine the dimensions of each term in the equation to find the dimension of AB².
The dimension of u is [M L² T⁻²].
The dimension of √x is [L^(1/2)].
The dimension of x² is [L²].
Since u = A√x by x², the dimensions on both sides of the equation should be equal.
Equating the Dimensions:
Equating the dimensions, we have:
[M L² T⁻²] = A[L^(1/2)]/[L²]
Simplifying the equation, we get:
[M L² T⁻²] = A[L^(-3/2)]
Now, to balance the dimensions on both sides of the equation, we equate the exponents of each dimension:
1. Equating the dimensions of mass:
1 = 0
This implies that the dimensions of mass are balanced.
2. Equating the dimensions of length:
2 = -3/2
This implies that the dimensions of length are not balanced.
3. Equating the dimensions of time:
T⁻² = 0
This implies that the dimensions of time are balanced.
Conclusion:
From the analysis above, we can conclude that the dimensions of AB² cannot be determined, as the dimensions of length are not balanced in the given equation.