The wheel-and-axle system below has dimensions d = 300 mm and R = 1.5 m. If the efficiency of the machine is 90%, find the mechanical advantage of the system.
A. 4.5
B. 5
C. 7
D. 9
E. 10
Answer: D
The wheel-and-axle system below has dimensions d = 300 mm and R = 1.5 m. If the efficiency of the machine is 90%, find the mechanical advantage of the system.
A. 4.5
B. 5
C. 7
D. 9
E. 10
Answer: D