Home
Class 8
PHYSICS
If a pulley is weightless and frictionle...

If a pulley is weightless and frictionless, is its mechanical advantage
(i) greater than
(ii) equal to
(iii) less than its velocity ratio.

Text Solution

AI Generated Solution

To determine the relationship between the mechanical advantage (MA) and the velocity ratio (VR) of a weightless and frictionless pulley, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Definitions**: - **Mechanical Advantage (MA)**: It is defined as the ratio of load (output force) to effort (input force). Mathematically, MA = Load / Effort. - **Velocity Ratio (VR)**: It is defined as the ratio of the distance moved by the effort to the distance moved by the load. For a simple pulley, VR = Distance moved by effort / Distance moved by load. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

If the two-pulley system is 75% efficient, what is its mechanical advantage?

For _____ order lever, mechanical advantage (MA) is always greater than 1.

An angle is greater than 45 .Is its complementary angle greater than 45 or equal to 45 or less than 45?

If the mechanical advantage of a machine is 6 and the velocity ratio is 8, what is its efficiency?