Question

The figure shows a horizontal force $\vec{F}$ acting on a block of mass M on an inclined plane (angle $\theta$). What is the normal reaction $N$ on the block?

• A. mgsin$\theta$ + Fcos$\theta$
• B. mgsin$\theta$ - Fcos$\theta$
• C. mgcos$\theta$ - Fsin$\theta$
• D. mgcos$\theta$ + Fsin$\theta$

Answer 1

Answer: (D)

mgcos$\theta$ + Fsin$\theta$

Answer 2

From the figure, the normal reaction on the block is N = mgcos$\theta$ + Fsin$\theta$.