alleryA lever balances a 180 N load 0.2 m from its fulcrum. Effort acts 0.9 m away. Find effort.
A90 N
B60 N
C40 N
D810 N
Answer & Solution
Correct answer: C. 40 N
Load moment is 180×0.2 = 36 N m; dividing by 0.9 m gives 40 N.
Keep practising Machines
Browse all Machines questions for ICSE Class 10, or explore more Physics topics.
Related questions
Match each machine design factor with its practical effect:Match each pulley system with its ideal mechanical advantage (ignoring friction):Match each class of levers with the position of its central component:Match each machine parameter with its mathematical formula:Why can a machine not deliver more work than it receives?A pulley tackle has six pulleys but only four rope sections support its moving block. WhatTwo simple machines in series have MAs 2 and 3. What is their combined MA?A machine takes 500 W input and loses 120 W as frictional heat. What is its output power?