Question

A simple wheel and axle is used to lift a bucket of water from a well the radii of the wheel and axle are 20cm and 4cm respectively determine the theoretical effort required to lift a load of 30N assuming no energy losses

Answer 1

Ma=radius of a wheel/radius of axel
Ma=20cm/4cm
Ma=5 therefore Ma=load/effort
Effort=load/Ma
=30N/5
E=6N

Answer 2

question

Answer 3

Good