A 100kg weight is placed 0.75 meters from a see-saw on the right hand side. Dan is 75kg. How far away does he have to sit from the pivot on the left hand side to have it balance?

A see-saw represents a pivot, for the see-saw to balance the moment on the left hand side has to equal the moment on the right hand side. Moment =  Force * distance Therefore the moment of the right hand side is 100kg * 10N/kg * 0.75m = 750N/m The moment of the left hand side is 75kg10N/kgdistance. So the distance = 750/(75*10) = 1 meter. 

AC
Answered by Alex C. Physics tutor

2315 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

What is the equation of an accelerated body moving in one dimension?


Energy generation can occur in both renewable and non-renewable ways. Part a) List three methods of non-renewable energy generation. Part b) List 2 methods of renewable energy generation. [Bonus] Part c) Why might it be beneficial to use renewable?


How much thermal energy does a 1 kg steel block with a specific heat capacity of 450 J/kg°C lose when it cools from 400°C to 60°C?


What is a moment?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences