no
ok
cuz people r fat
pulleys, levers, pendulums
They were invented a long time along time ago.
Pulleys and levers, and wedges. Answer: Simple machines
A bicycle consists mainly of Wheel and axles, levers, screws
the similarities are that both of them are your dad and the difference are that one of them have a bigger
simple machiens are the thing which reduce human effort
the categories are levers, wheel and axel , pulleys,wedges, inclined planes, and screws.
simple machine such as pulleys and levers make work easier
Ramps (which are also known as wedges), levers, and pulleys are simple machines.The answer you are looking for is Tools.