Question Number 59152 by Forkum Michael Choungong last updated on 05/May/19
Commented by Forkum Michael Choungong last updated on 05/May/19
$${In}\:{the}\:{figure}\:\mathrm{1}\:{above}\:{a}\:{craw}\:{bar},{ABC}, \\ $$$${is}\:{shown}\:{being}\:{used}\:{to}\:{dig}\:{and}\:{lift} \\ $$$${a}\:{heavy}\:{stone}\:{from}\:{the}\:{ground}. \\ $$$$ \\ $$$$\left.{a}\right)\:{Mark}\:{with}\:{arrows}\:{on}\:{the}\:{diagram} \\ $$$${the}\:{best}\:{point}\:{and}\:{direction}\:{of}\:{action} \\ $$$${of}\:{the}\:{effort}\:{applied}\:{and}\:{the}\:{weight} \\ $$$${of}\:{the}\:{stone}. \\ $$$$ \\ $$$$\left.{b}\right)\:{Explain}\:{the}\:{effect}\:{of}\:{increasing} \\ $$$${the}\:{distance}\:{ABC}. \\ $$$$ \\ $$$$ \\ $$$$ \\ $$$$ \\ $$