# What Is the Minimum Work in Physics?

Nov 15, 2022 If you have ever wondered what is the minimum work in physics, you are not alone. This article will show you how to calculate the minimum force or work done. You will also learn about the formula for work done. Once you have the formula, you can start your calculations.

## How do you find minimum work physics?

A 950 kg car can be pushed 810 meters up a 9.0 degree incline. The minimum work physics for pushing this weighted vehicle is equal to -1.484 x 105 J. The example on page 294 shows how this calculation can be done.

The simplest answer is a simpler formula. If the mass of the car is 1250 kg, it is going to be accelerated by 30.0 m/s for the first 15 metres, but then stop after the second half. If the weight of the car is 1330 kg, the amount of work required to accelerate it is 157 kJ. For comparison, a 5000 kg truck can complete 360 kJ of work in the same time.

Consider two different scenarios. First, imagine a 200 kg barbell is raised to 1.25 m with work. A 20 kg box slides at a constant speed. Then, imagine that the same weight lifts a small object from the ground to the third floor of a tall building. The weight of the suitcase, the dog, and the basket combined create an additional mass of 201 J.

## How do you calculate minimum force?

You’ll find the minimum force needed to push an 850 kg car up 840 meters by dividing the mass by the angle of incline. For example, if the car weighs 950 kilograms and is pushed up a 9.0 degree incline, the force needed will be negative 950 kilograms.

## What is the formula for work done?

The work done to push a 850 kg vehicle 840 m up will be the same as the force applied by gravity. The force applied by gravity is called the centripetal force. This force acts at an angle of 90o to the direction of motion.

Work is a concept in mathematics, and you may be asked questions involving it. A work equation can be calculated to determine how much work an applied force does to a mass. The formula for this type of question requires knowing three quantities – the force, the displacement, and the angle between the force and displacement vectors.

## How do you calculate work?

A question posed to a student about work involves calculating the amount of work an object does by applying force to it. Work can be expressed as a percentage of the displacement. For instance, if an 850 kg car is pushed 840 m up, its kinetic energy would decrease by half.

A typical automobile engine has an efficiency of 25%. This means that it produces about 140 hp of power. Its frictional retarding force is 300 N. There are normal forces on the cart and gravity to consider, too.

## How do you find the maximum and minimum force?

The force that a car will need to travel from a certain point to a higher one is given by its mass and the velocity. There are two types of forces – positive and negative. Positive force indicates a force that is parallel to the direction of travel and negative force indicates a force that is in the opposite direction.

If we assume the coefficient of kinetic friction is 0.100 and the coefficient of gravity is 0.300, the horizontal force that pushes the car up the incline will be around 30 N. The vertical height change will be 3.0 m. The total work done by all these forces, along with the work done by gravity, is known as the net force.

## How do you calculate work done by friction?

The work equation is used to determine the work done by a force on an object. To understand how this equation works, look at a free-body diagram. This diagram shows the different forces acting on an object and their directions. You can calculate the work done by the forces by determining how much force is exerted on each force.

To understand how the work is calculated, you need to understand the relationship between friction and gravity. Gravity and kinetic friction are both involved in pushing a car upwards. The amount of friction that occurs on an object depends on the coefficient of kinetic friction.