Put wooden block on smooth surface board and what happen when you lift one end of the board .why?

When you lift one end of the board with the wooden block on it, the block will slide down the board due to gravity. This happens because the force of gravity is pulling the block downwards, and when you lift one end of the board, the block will slide in the direction of the force of gravity. Additionally, the smooth surface of the board reduces friction, allowing the block to slide more easily.

What happens:

When you lift one end of the smooth surface board, the wooden block will slide down the board.

Why:

- Gravity pulls the block downwards: Gravity exerts a force on the block, pulling it towards the ground.
- Lack of friction between the block and board: The surface of the board is smooth, which means there is a low coefficient of friction between the block and the board. This means that the force of friction opposing the block's downward motion is minimal.
- Resultant force: The net force acting on the block is gravity, which is pulling it downwards along the slope. As there is little to no friction to oppose this force, the block accelerates down the board.