A pulley is a wooden or a metallic disc with a grooved ring and a rope around it.
The simple machine with a grooved wheel and a rope is_______. (a pulley/wheel and axle).
A pulley is a grooved wheel.
A metal ring of initial radius r and cross-sectional area A is fitted onto a wooden disc of radius R>r .if Young's modulus of metal is Y then tension in the ring is: