A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?
Fn = 10-3 = 7 N. = Net force.
To find the magnitude and direction of the net force acting on the block, we need to consider the forces acting on the block and then calculate their vector sum.
1. The applied force: In this case, a horizontal force of 10 Newtons is applied to the block.
2. The frictional force: The frictional force always acts in the opposite direction to the applied force. In this case, the frictional force between the block and the surface is given as 3 Newtons.
The net force is the vector sum of these two forces. Since the applied force and the frictional force act in opposite directions, we can subtract them to find the net force:
Net force = Applied force - Frictional force
Net force = 10 N - 3 N
Net force = 7 N
So, the magnitude of the net force acting on the block is 7 Newtons.
To determine the direction of the net force, we need to consider that the applied force and the frictional force are acting in opposite directions. Since the applied force is greater than the frictional force, the net force will be in the direction of the applied force.
Therefore, the direction of the net force acting on the block is in the same direction as the applied force, which is horizontal.