JAMB - Physics (2015 - No. 34)
If the velocity ratio of a machine is 5. What is its ratio of x and y?
2 : 5
1 : 5
5 : 1
3 : 1
설명
Velocity Ratio (V.R) = distance moved by the effort (x)÷ distance moved by the load (y)
i.e. V.R = x/y
v. R = 5, x/y = ?
i.e x/y = 5/1; , where x = 5, y = 1
x : y = 5 : 1
i.e. V.R = x/y
v. R = 5, x/y = ?
i.e x/y = 5/1; , where x = 5, y = 1
x : y = 5 : 1