Inclined Plane Physics #3

Question

If a 6 kg box sits on a 28 degree hill, find the magnitude of the downhill pull.

Answer 1

The downhill "pull" is the gravity force which is mgsin(a) and no other forces are mentioned!

Where m = the mass (kilograms), g = acceleration due to gravity (9.8 meters/second²), & a = the angle of incline (28 degrees), So

F = (6kg)(9.8 m/s²)(sin(28)) = 27.6 kg-m/s² = 27.6 N