The discussion revolves around a physics problem involving a block on an inclined plane attached to a moving truck. The block's behavior on the incline and the forces acting on both the block and the truck are central to the inquiry.
Some participants have provided guidance on the necessity of considering the horizontal component of forces acting on the block. There is an acknowledgment of the need for clarity in the force diagrams, particularly regarding the normal force and the weight of the block.
The problem involves a specific setup with a 100 kg block on a frictionless incline at 60 degrees, and a truck with a total mass of 1500 kg. The discussion highlights the importance of understanding the forces acting on both the block and the truck in relation to their motion.
this?phinds said:
I was attempting to draw free body diagrams in response to your question about whether I could draw a force diagram.phinds said:
The FBD for the truck is missing the normal force from the ground and it should not show the weight of the block. The weight of the block is a force on the block; the force that acts on the truck's incline is the normal force.rakailee said:
There is a problem here. You are correct in saying that the acceleration of the truck and the block are the same. Therefore, the acceleration of the block is in the horizontal direction. The weight cannot provide a horizontal acceleration. What force can and what is its horizontal component?rakailee said:
I understand how to solve it from there, thanks! I should've realized that acc of block must be horizontal as well.kuruman said: