#Formula of workdone full

So, in this case, the answer would be (b). So, if that is what you mean by your selection of answer (e), then you are correct.Д«ut, if you are referring to the spatial average pressure of the gas within its enclosure during the expansion, in an irreversible expansion, this would be higher than the force per unit area at the interface where the work is being done. But, of course, since the interface has no mass, irrespective of whether the expansion is reversible or irreversible, according to Newton's 3rd law, the force per unit area exerted by the gas at the interface with its surroundings must always match the pressure of the surroundings. In a rapid irreversible expansion, the pressure of the expanding gas is not constant spatially within the gas enclosure, and, moreover, there are viscous stresses which contribute to the force per unit area at the interface. The work done on a system by a constant force is the product of the component of the force in the direction of motion times the distance through which the. Your answer is correct if, by the pressure of the expanding gas, you mean the force per unit area exerted by the expanding gas at the interface with its surroundings. What must remain constant for this equation to be used? To answer this question we must first calculate the kinetic energy of the car that has to be transferred to heat, as this is the work done through the braking of the car.The work done W by an expanding gas is calculated using W = pО”V.

If a car has a mass of 800kg and is travelling at 25m/s, what force is required to stop the car in 50 metres? Answer: The body falls under the action of the force of gravity, to calculate the work done, therefore we will use the equation above, where m 65 kg, g 9.8 m/s 2, h 80 m. Calculate the work done by gravitational force. Always read the question carefully to see if the answer is required in Joules or Newton metres. 2) A body of 65 kg falls from the terrace of a building 80 m high. However, 1Nm is equal to 1 Joule (J) so you may see some questions which state Joules rather than Newton metres. Thermodynamics is a branch of physics which deals with the energy and work of a system. Work done is measured in Newton metres (Nm). For a gas, work equals change in pressure times a change in volume. Work done = mass x acceleration x distance moved The basic formula for solving is: 1/r + 1/s 1/h Let us take a case, say a person Hrithik Let us say that in 1 day Hrithik will do 1/20th of the work and 1. Work done is calculated with the following formula:ДЄs we already know force = mass x acceleration (F=ma).

The work done is also equal to the energy transferred to the object in order to move it. Assume the orbit of Earth around the Sun is circular. We shall assume that formula (136)-which is valid for constant forces and.

#Formula of workdone full

If the distance between the Sun and the Earth is 1.59Г—10 11 m, calculate work done by the Sun to keep the Earth in its orbit for one full year. in the direction of that force, then the net work done on the body is. The force of gravity between the Earth and the Sun is 3.5Г—10 22 N. Work done is a measure of what is required to move an object over a distance. Since friction acts through a distance of 160 m, work done is.