Question

PLEASE HELP ASAP

A 744N object falling in the air experiences 434N of air resistance. what is the amount if net force of the falling objec

Answer 1

The amount of net force of the falling object is -310 N, or 310 N downwards

Step-by-step explanation:

Net Force

Being the force a vector, the net force is the sum of all the force vectors acting on an object at a given time:

`\vec F_n=\vec F_1+\vec F_2+\vec F_3+.....\vec F_m`

When the forces are acting in one axis, say the y-axis, the direction of the forces can be considered by the sign of the magnitude of the force.

For example, the weight of the object is usually assigned a negative direction. In our problem:

W=-744 N

The air resistance always opposes the direction of motion. Since the object is falling, the air resistance is positive:

Fa = +434 N

The net force is the sum of both, including their signs:

Fn = -744 N + 434 N = -310 N

The amount of net force of the falling object is -310 N, or 310 N downwards