9. a block is sitting on a table. identify all the forces acting on it and explain why it doesnt move.
9. a block is sitting on a table. identify all the forces acting on it and explain why it doesnt move.
Answer
Brief Explanations:
The two main forces acting on the block are the gravitational force (weight) pulling it downwards and the normal force exerted by the table upwards. According to Newton's first - law, an object at rest stays at rest unless acted upon by an unbalanced force. Here, the gravitational force and the normal force are equal in magnitude and opposite in direction, resulting in a net force of zero. So, the block remains stationary.
Answer:
The forces acting on the block are the gravitational force (weight) and the normal force. It doesn't move because the net force acting on it is zero as the gravitational force and the normal force are balanced.