Examples of Applied Force
Applied Force Formula: How to Find the Applied Force
Applied Force vs. Normal Force
Pulling a bucket of water from a wellRotating a doorknob by human handLifting an object from the floorChecking the weight of the person (This is a practice way to measure the applied force)Pushing a box on a floor
Applied Force Equation
Suppose an object of mass m is pushed through a distance such that its acceleration is a. Then, the applied force is given by, FA = ma Friction Now, if the object is moving on a surface where there is a friction force f, then, ma = FA – f Or, FA = ma + f Gravity If a string suspends the object, then its weight W is the only force acting on it. The applied force is given by, FA = W = mg Inclined Plane When the object is on an inclined plane, then the component of its weight along the incline is the applied force. FA = mg sin θ Work Done by Applied Force When the applied force displaces an object through a distance x, work is done. W = FA.x
