Question

On a smooth inclined plane making an angle $\theta$ with horizontal a trolley containing a liquid of density $\rho$ slides down.
The angle of inclination $\varphi$ of free surface of liquid with horizontal is:

• A. $\varphi =\theta$
• B. $\varphi =\frac{\theta }{3}$
• C. $\varphi =\frac{\theta }{9}$
• D. $\varphi =\frac{2\theta }{3}$

Answer 1

The correct option is A $\varphi =\theta$