Question

A ball of weight $W$ is kept on an inclined surface as shown in the figure. The component of weight along $x$ and $y$ axes respectively are

• A. $-W\cos \theta ,-W\sin \theta$
• B. $-W\sin \theta ,-W\cos \theta$
• C. $W\sin \theta ,W\cos \theta$
• D. $W\cos \theta ,W\sin \theta$

Answer 1

The correct option is B $-W\sin \theta ,-W\cos \theta$

The weight along the axes can be resolved as shown in the figure


So, from the figure the component along $x-$axis is $-W\sin \theta$
and, along $Y-$axis is $-W\cos \theta$