WebWork - Class 9 Tutorial amritacreate 296K subscribers Subscribe 1K 78K views 8 years ago If a lot of force is applied to a body, it moves the body a longer distance in the direction of the... WebSolution Verified by Toppr Work done (W) = force ∗ displacement. Hence, work is said to be done when there is displacement. In this case the wall does not displace from its position even though the force is applied and since displacement is zero work done is said to be zero. Was this answer helpful? 0 0 Similar questions
Work, Energy and Power - Definition, Examples, …
WebNov 20, 2024 · Zero Work Done Zero work done is either when there is no force applied to the object or when force is applied, but the displacement is zero. For example, if the force is applied hard against the wall, the … WebThat's right, you can do work less than zero, in physics. Let's find out how. Now in a previous video, we saw how to calculate work. It's calculated as force acting on an object multiplied by the displacement of that object. This means that to do work, in physics, you need to push or pull on something, and while pushing or pulling, you have to ... ireland baldwin portland oregon
Explain Positive, Negative and Zero Work. Give one …
WebOct 16, 2024 · - Work done is zero when either force or displacement is zero. Examples of zero work - - A man trying to push a wall - Blocking sliding over smooth surface - Sitting in a chair - Work done in circular motion - Car running over frictionless surface - A man standing still - Porter carrying load on his shoulder - An object wandered in space. WebApr 9, 2024 · Where θ is the angle between two vectors. F → ⋅ r → = F r cos θ. Find θ for positive W, negative W and zero W. Complete step by step answer: The work done by a force on a particle during a displacement is given as. W = F → ⋅ r →. Here, W = work. F → = force. r → = displacement. WebNov 23, 2024 · Work done = 0 Since displacement, s = 0 Q5. Identify the kind of energy possessed by a running athlete. Answer Kinetic energy. Short Answer Questions-I (SAQs-I) : 2 Marks Q1. An electrical heater is rated 1200 W. How much energy does it use in 10 hours? Answer Electrical energy = Power × time taken = 1.2 × 10 = 12 kWh Q2. ireland baldwin photos girlfriend