1. Define the following terms:
(c) Simple machine
(d)Complex machine
(e) Mechanical advantage
2. Raju pushes a table by applying a force 50 N. find the work done by this force if the
table is displaced 10 m along the path.
3. The mechanical advantage of a machine is 10. How much load it can exert for the effort of 4 kgf ?
Answers
Q1}SIMPLE MACHINE=A simple machine is a mechanical device that changes the direction or magnitude of a force.[2] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force.[3] Usually the term refers to the six classical simple machines that were defined by Renaissance scientists
complex machine=complex machine is a machine made up of two or more simple machines that make your work easier to do. There are six simple machines from which all complex machines are made. They include: The lever. The inclined plane.
MECHANICAL ADVANTAGE=Mechanical advantage (also written as MA in formulas) is the factor by which a machine multiplies force. The mechanical advantage of a machine can be used to find out how well a machine works and whether it can perform a particular job.
Q2}work done = f × d
50×10 = 500
Q3} ma = fo/fa =10/4=2.5
Answer:
SIMPLE MACHINE- Machine makes our work easier and faster.
COMPLEX MACHINE- two or more simple machines work together
sorry I know this much only
hope it helps