Calculate the (a) velocity ratio (b) mechanical advantage (c) %age efficiency of a machine which overcomes a resistance of 800N - Sarthaks eConnect | Largest Online Education Community
![The mechanical advantage of a machine is 5 and its efficiency is 75%. A load of 300 kgf is lifted with the help of this machine up to the height of 15 The mechanical advantage of a machine is 5 and its efficiency is 75%. A load of 300 kgf is lifted with the help of this machine up to the height of 15](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/646305285_web.png)
The mechanical advantage of a machine is 5 and its efficiency is 75%. A load of 300 kgf is lifted with the help of this machine up to the height of 15
![Ch. 5.2 Efficiency. Efficiency efficiency – measurement of the useful work done by a machine compared to the work needed to operate the machine useful. - ppt download Ch. 5.2 Efficiency. Efficiency efficiency – measurement of the useful work done by a machine compared to the work needed to operate the machine useful. - ppt download](https://images.slideplayer.com/26/8707231/slides/slide_8.jpg)