An athletic coach told his team that muscle times speed equals power. What dimensions does he view for muscle?

Which of the following is dimensionless?

Dimensional formula for torque is

Which pair has the same dimensions?

Out of the following,which pair of quantities does not have the same dimensions?

Force $F = P \cos(Ax) + Q \sin(Bt)$,where $x$ and $t$ are displacement and time respectively. Which one of the following physical quantities has the dimensions of $\left[\frac{B}{A}\right]$?