6/13/2023 0 Comments Formula for workdone![]() Q3 - If the wooden block is slid on a concrete road then what type of work is done by the friction?Ī - Friction force has the property to stop any object by acting in the opposite direction, hence the force applied and friction force is in the opposite direction to each other. Hence, it is a negative type of work done. Q2 - If a ball is thrown up in the air by the force what type of work done it is?Ī - Since the ball is thrown upward, the gravity force acts in opposite direction to the applied force. Work Done=Force Applied (F) x Displacement (D) Q1 - What is the Formula, Unit & Dimension of Work Done? Then, this type of work done is zero.įAQs (Frequently Asked Questions) Using Work Done Formula Then, work done is said to be zero.įor Example - If we push or apply force on a wall but the wall does not move from its position it results in zero displacements. Zero Work Done - When the force is applied on the body is positive but the body doesn’t move from the position i.e. Negative Work Done -When force and displacement are in the opposite direction then the work done is said to be negative.įor Example - If a ball is thrown upward in the direction, gravity pulls the ball in an opposite or downward direction. Positive Work Done -When the force and displacement are in the same direction then the work done is called to be positive.įor Example - A doctor or a nurse moving a patient in a wheelchair or riding a bicycle is also a good example of positive work done.Ģ. Therefore, the work done by the person is 50 Joule.Ī brief explanation of types of work done -ġ. Find the work done by the person?Ī - We have, Force Applied by the person = 5N Q - A person pushes a wooden block with a force of 5N for 10m in a Straight Line. The unit of Work done is Joule (J), and its dimension is Derivation Of Work DoneĪn example for your better understanding of the concept . ![]() W= FDCosθ - When force is applied at an angle 'θ' Unit and Dimension of Work Done Work Done (W) = Force applied to object (F) x Displacement (D) The work done (W) is calculated using the below formula. When we apply force on an object to move from one point to another point, a change in the position of the object occurs which is called Displacement. Have you ever wondered how all that work is measured in physics to prove that to say some work is done? Let's find out the concept behind this. In our day-to-day life, we hear that a person is working so hard to achieve his goal, that worker is working hard to move an object from one place to another place by pushing, rolling, etc. Work Done - Definition, Formula, Derivation, and Types
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