Question

A block of weight $W$ is kept on an inclined surface whose angle of inclination is $\theta$ with horizontal. The component of weight perpendicular to the incline is

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

Answer 1

The correct option is B $W\cos \theta$

The given condition can be represented as shown

From the figure we have
Component of weight perpendicular to the incline is $W\cos \theta$
Component of weight along the incline is $W\sin \theta$