Gravity because it is pulling down the box
In physics, work is performed when a force is applied to an object and causes it to move in the direction of the force. In this scenario, the man lifting the box is applying a force to move the box upwards against the force of gravity. The work done is equal to the force applied multiplied by the distance the box is lifted.
The net force on the box is 5 N downward (20 N force down - 15 N force up). This is because the 15 N force opposing the 20 N force reduces the overall force acting on the box to 5 N downward.
Pushing a box that doesn't move indicates an unbalanced force. If the force of friction opposing the push is greater than the force you are exerting, the box will not move. In this case, the forces are unbalanced.
The force that stops a box from falling through a table is the normal force. This force is exerted by the table in the upward direction and counteracts the downward force (weight) of the box, preventing it from falling through the table.
The net force applied is 4 N upward. This is calculated by subtracting the weight of the box (35 N downward) from the force applied to lift it (39 N upward), resulting in a net force of 4 N in the upward direction.
scroll box
In physics, work is performed when a force is applied to an object and causes it to move in the direction of the force. In this scenario, the man lifting the box is applying a force to move the box upwards against the force of gravity. The work done is equal to the force applied multiplied by the distance the box is lifted.
The net force on the box is 5 N downward (20 N force down - 15 N force up). This is because the 15 N force opposing the 20 N force reduces the overall force acting on the box to 5 N downward.
Pushing a box that doesn't move indicates an unbalanced force. If the force of friction opposing the push is greater than the force you are exerting, the box will not move. In this case, the forces are unbalanced.
The force that stops a box from falling through a table is the normal force. This force is exerted by the table in the upward direction and counteracts the downward force (weight) of the box, preventing it from falling through the table.
The net force applied is 4 N upward. This is calculated by subtracting the weight of the box (35 N downward) from the force applied to lift it (39 N upward), resulting in a net force of 4 N in the upward direction.
4 N upward
Spin box
Spin box
Spin Box
When you push a box but it doesn't move, it means that the force you apply is not enough to overcome the static friction between the box and the surface it's on. Increasing the force or reducing the friction (e.g. by using lubrication) can help move the box.
it is zero