downward force
As the elevator begins to move upward, the reading on the scale will momentarily increase. Conversely, as the elevator starts to move downward, the reading on the scale will momentarily decrease. This change in reading is due to the acceleration experienced by the occupants of the elevator, causing a shift in apparent weight.
The reaction force to the downward push of Billy's weight on the chair is the upward force of the chair pushing back on him. The downward force of Billy's weight on Earth is countered by the upward force of gravity acting on him.
The upward force is called lift, while the downward force is called weight or gravity.
True. The weight reading on a scale measures the downward force exerted by an object due to gravity.
If the upward force acting on an object is greater than the downward force (its weight or force of gravity), the object will experience a net upward force causing it to accelerate in the upward direction. This could lead to the object moving upwards, overcoming the force of gravity pulling it downward.
As the elevator begins to move upward, the reading on the scale will momentarily increase. Conversely, as the elevator starts to move downward, the reading on the scale will momentarily decrease. This change in reading is due to the acceleration experienced by the occupants of the elevator, causing a shift in apparent weight.
The reaction force to the downward push of Billy's weight on the chair is the upward force of the chair pushing back on him. The downward force of Billy's weight on Earth is countered by the upward force of gravity acting on him.
Scales are intended to measure some downward force acting on the scale, which is the weight of the object placed on the scale to be weighed, but it is also true that the downward force is necessarily balanced by an equal and opposite upward force, otherwise the scale would be forced downward (which would be very awkward since it would break through the floor and create quite a mess).
The upward force is called lift, while the downward force is called weight or gravity.
True. The weight reading on a scale measures the downward force exerted by an object due to gravity.
If the upward force acting on an object is greater than the downward force (its weight or force of gravity), the object will experience a net upward force causing it to accelerate in the upward direction. This could lead to the object moving upwards, overcoming the force of gravity pulling it downward.
lift acts upward, and weight acts downward
The weight of the crate is acting downward on the ground and the ground is exerting a force equal to the weight of the crate upward on the crate.
As the elevator begins to move upward, the reading on the scale will increase due to the increase in apparent weight experienced by the person inside the elevator. This increase is a result of the combination of the person's actual weight and the upward acceleration of the elevator.
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.
As the elevator moves upward, the reading on the scale will temporarily increase. This is because the scale measures the force exerted by the person standing on it, which includes their weight and an additional force due to the upward acceleration of the elevator.
The weight of the crate is acting downward on the ground and the ground is exerting a force equal to the weight of the crate upward on the crate.