Answer :
Final answer:
In this physics problem, three forces are acting on the crate: tension, gravity, and friction. The acceleration is computed by using Newton's second law, considering the total force acting on an object equals to mass multiplied by the acceleration. This includes factoring in the friction force computed based on the coefficient of kinetic friction and normal force.
Explanation:
The subject of this problem is classical mechanics, specifically the interaction of forces. When the 19-kg crate is being pulled up the ramp, three forces are exerted on it. Firstly, the gravitational force directed down, secondly, the normal force from the ramp, and lastly, the friction force which acts against the motion of the crate.
Given that the force of tension T=141 N, we can find the acceleration using the equation for Newton's second law: F=ma. In this scenario, the net force F will be the pulling force minus the force due to gravity along the inclined plane, and the force due to friction.
The frictional force can be calculated as the normal force times the coefficient of kinetic friction (0.2 in this case). We first find the component of the weight of the box perpendicular to the inclined plane which is m*g*cos(θ).
Once we compute all these forces, we plug in these figures into the F=ma equation, and solve for acceleration (a). This will provide us with the acceleration that is maintained when the crate is pulled with a force of 141 N.
Learn more about Physics of inclined plane here:
https://brainly.com/question/32899201
#SPJ11
