Question

The correct relationship between the velocity ratio (V.R), the distance through which effort act (d), and the distance through which load moves (D)

• A. $V.R\times D=d$
• B. $V.R=D\times d$
• C. $V.R\times d=D$
• D. None of these

Answer 1

The correct option is A

$V.R\times D=d$

Explanation

• Given
  • d = distance through which effort act
  • D = distance through which load moves
• Velocity ratio: It is the ratio of the velocity at which effort is applied to a machine to the velocity at which load moves.
• $$\begin{gathered} Velocityoftheeffort=\frac{d}{t} \\ Velocityoftheload=\frac{D}{t} \\ VR=\frac{d}{D} \\ VR\times D=d \end{gathered}$$

Hence the correct answer is $V.R\times D=d$