When a 40-N force, parallel to the incline and directed up the incline, is applied to a crate on a frictionless incline that is 30° above the horizontal, the acceleration of the crate is 2.0 m/s^2, up the incline. The mass of the crate is ?
The net force up the incline is given by
Solving for m,
Note: the Newton is equivalent to
I hope this helps,
Given that a force
Applying Newton's second law , the net force acting on the crate moving up the inclined plane