Question Detail
Question
The position of a mass at the end of a spring is found as a function of time to be A sin(ωt). Select the dimensions of A and ω.
Correct Answer
Option D is the correct answer.
Detailed Explanation
The argument of sine must be dimensionless. ωt is dimensionless, so ω has dimension T⁻¹. A is the amplitude of displacement, so it has dimension L.
Hint
The sine function's argument is dimensionless. Amplitude has the dimension of the oscillating quantity.