WebHá 1 dia · Russia fired two S-300 missiles at Sloviansk in eastern Ukraine overnight, Vadym Liakh, head of the city military administration, said Thursday. The first missile hit a school yard and damaged ...Web138 8.4K views 3 years ago Friction Physics Class 8 Friction is necessary for our daily life. But it is evil as it causes heating and wears and tear. So, it is a necessary evil....
How is a friction is a necessary evil? - Meritnation
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Why is friction a necessary evil example? – Short-Fact
Web27 jul. 2024 · On the other hand, the force required to keep the object moving at the same speed is a measure of sliding friction. Friction: A necessary Evil – It might seem that friction is not important and it only creates hurdles such as in moving objects. But that is not the case. Friction indeed plays an important role in carrying day-to-day activities. Web27 jun. 2024 · Therefore, the process of transpiration is called a necessary evil. How friction is an evil? Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. Hence it is considered as a evil. Basic activities like walking and writing on a surface are possible due to friction. … Why is plastic a necessary evil? Plastic ...Web30 mrt. 2024 · Sometimes, friction is useful to us Due to lack of friction,there may be risk of accident We may need to increase friction to prevent slipping and function properly This is done by various methods as shown below Example 1 Sole of shoe is grooved (rough). This increase friction and prevents us from slipping Example 2data abstraction \u0026 problem solving with c++