A block rests on a smooth plane inclined at to the horizontal

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

5\,\text{kg}

block rests on a smooth plane inclined at

30^{\circ}

to the horizontal. Take

g = 9.8\,\text{m s}^{-2}

. Find the normal reaction exerted by the plane on the block. (a)

25\,\text{N}

(b)

57\,\text{N}

(c)

42\,\text{N}

(d)

49\,\text{N}