![The efficiency of a wheel and axle is 100% and the ratio of their radii is 5:1. calculate the effort required to lift a load of mass 20kg using this machine, [g = 10 m s−2]](https://erudites.ng/wp-content/plugins/accelerated-mobile-pages/images/SD-default-image.png)
![The efficiency of a wheel and axle is 100% and the ratio of their radii is 5:1. calculate the effort required to lift a load of mass 20kg using this machine, [g = 10 m s−2]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
A. 20N
B. 25N
C. 40N
D. 100N
Correct Answer:
Option C = 40N
Explanation
VR = 5:1 or 5
Load = 20kg or 200N
MA = 200E
Efficiency% = MAVR∗100
100% = 2005E∗100
5E = 200
E = 40
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
300 Level Department of Accountancy exam questions and detailed answers. Download the answers in document format.…
