Question

14. A drum weighing 60 N and holding 400 N water is to be raised from a well by means of a wheel and axle. The axle is of 100 mm diameter and the wheel is of 400 mm diameter. If the force of 120 N has to be applied to the wheel find (1) M.A. (ii) V.R. (iii) Efficiency of the machine [Ans. 3.83; 4; 95.75%]​

Answer 1

Explanation:

14. A drum weighing 60 N and holding 400 N water is to be raised from a well by means of a wheel and axle. The axle is of 100 mm diameter and the wheel is of 400 mm diameter. If the force of 120 N has to be applied to the wheel find (1) M.A. (ii) V.R. (iii) Efficiency of the machine [Ans. 3.83; 4; 95.75%]