A 1.0-kg mass rests on an inclined plane (angle of incline = 60°). Assuming that the acceleration of gravity is 10 m/s², the normal force acting on the mass is A) 8.5 N. B) 5.0 N. C) 10 N. D) 0.0 N.

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Quizplus · Accepted Answer

The normal force on an inclined plane is calculated as $N = mg \cos(\theta)$, where $m$ is the mass, $g$ is the acceleration due to gravity, and $\theta$ is the angle of the incline. For a 1.0-kg mass on a 60° incline with $g = 10 \, \text{m/s}^2$, the normal force is $N = 1.0 \times 10 \times \cos(60°) = 5.0 \, \text{N}$.

A 10-Kg Mass Rests on an Inclined Plane (Angle of Incline