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Kinetic energy of a particle moving along elliptical trajectory is given by k=alpha S^2, where s is the distance travelled by the particle the dimensions of alpha are?
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Kinetic energy of a particle moving along elliptical trajectory is giv...
Understanding Kinetic Energy Expression
The kinetic energy \( k \) of a particle moving along an elliptical trajectory is expressed as \( k = \alpha S^2 \), where \( S \) is the distance traveled by the particle.
Breaking Down the Equation
- Kinetic Energy (k): The dimensions of kinetic energy are derived from the formula \( k = \frac{1}{2} mv^2 \).
- Dimensions: \([M^1 L^2 T^{-2}]\)
- Distance Traveled (S): This is simply a measure of length.
- Dimensions: \([L^1]\)
Analyzing Dimensions of \( \alpha \)
To find the dimensions of the constant \( \alpha \), we rearrange the equation:
\[ \alpha = \frac{k}{S^2} \]
Substituting the dimensions we have:
- Dimensions of \( k \): \([M^1 L^2 T^{-2}]\)
- Dimensions of \( S^2 \): \([L^1]^2 = [L^2]\)
Now, substituting these into the rearranged equation:
\[ \alpha = \frac{[M^1 L^2 T^{-2}]}{[L^2]} \]
This simplifies to:
\[ \alpha = [M^1 T^{-2}] \]
Final Dimensions of \( \alpha \)
- The dimensions of \( \alpha \) are \([M^1 T^{-2}]\).
This indicates that \( \alpha \) represents a physical quantity that relates mass and time squared, which is essential in the context of kinetic energy in motion along a trajectory.
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Kinetic energy of a particle moving along elliptical trajectory is given by k=alpha S^2, where s is the distance travelled by the particle the dimensions of alpha are?
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