Table of Contents
Why is work done force times distance?
In words: Work is equal to the force that is exerted times the distance over which it is exerted. In equation form: work (joules) = force (newtons) x distance (meters), One joule is defined as the amount of work done when a force of one newton is exerted through a distance of one meter.
How does force relate to distance?
A: A force is described as any influence that causes an object to undergo a change. Distance refers to how far an object travels over a period of time. The greater the force that is applied on an object the further distance that object will travel.
What makes work harder force or distance?
Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied. That’s because a machine doesn’t change the amount of work and work equals force times distance.
What is the distance of force?
Work is the force exerted on an object times the distance over which the force is exerted: W = Fx, where W is the work in Nm = Joule.
Why is work force needed?
In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force. For the special case of a constant force, the work may be calculated by multiplying the distance times the component of force which acts in the direction of motion.
What is the difference between work and force?
Force is defined as the rate of change of momentum (momentum is mass multiplied by velocity) with respect to time. Work is the product of displacement and the component of force in the direction of displacement. If work is done, then the kinetic energy of an object changes.
Is force inversely proportional to distance?
Since force is proportional to the density of field lines, the force is inversely proportional to distance squared.
Is force inversely proportional to time?
An examination of rows 1 and 2 show that force and time are inversely proportional; for the same mass and velocity change, a tenfold increase in the time of impact corresponds to a tenfold decrease in the force of impact.
Why does work equal force times distance?
Work is sometimes force times distance, but not always. Work is more subtle than that, and in order to understand energy, you have to understand work to a greater depth. If you think that “work equals force times distance,” then you probably think that you automatically do work every time you exert a force.
Answer and Explanation: Work is a measure of energy transfer when force is applied in a certain direction. It is measured in joules. Work is related to force and distance by the mathematical equation: work = force x distance. One could understand this equation as 1 joule of work has occurred when 1 newton of force created a displacement of 1 meter.
Is work a product of force and distance?
The concept of work in physics is similar; work in this context is defined as the product of the force applied to an object and the distance that the object is displaced (moved). For example, to lift the heavy box, one must apply an upward force to it over a certain distance; if the box needs to be lifted only a little bit, less work is done than if the box needs to be lifted high.
Is work equal to force x distance?
Work: a force acting through a distance Work = Force X Distance W = F d The units of force are Newtons and the units of distance are meters The answer is in Newton-Meters. These units are referred to as Joules Work Problems 1. A force of 800 Newtons is needed to push a car across a lot.