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Kerala Syllabus 9th Standard Physics Solutions Chapter 5 Work, …
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Work and Energy - Numerical Problems – Class 9 Physics
WebAug 28, 2024 · Answer: (a) 1 joule is the amount of work done on an object when a force of 1 N displaces it by 1 m along the line of action of the force. (b) 1 watt is the power of an agent, which does work at the rate of 1 joule per second. Question 3. Write down SI unit of the following quantities. (a) work. (b) kinetic energy. WebMar 17, 2024 · Students who ask this question also asked. Question 1. Views: 5,419. The body returns back to the earth, So, Displacement =0 m Distance travelled =80 m+80 m =160 m Calculate the force of gravitation between the earth and the sun, given that the mass of the earth and of the Sun =2×1030 kg. The average distance between the two is 1.5×1011 m . WebSolution : Power is the rate of work done. It is denoted by P. power = work/time. P = W/t. Question 10. Define 1 watt of power. Solution : If an agent works at the rate of 1 J/s then … dxb which country