Question

1. What is the moment arm? Explain howit is useful to increase the moment armwith reference to the handles of doors and windows. Give one other example of increasing the moment arm to use a smaller space.​

Answer 1

Answer:

Moment arm - it is a lever which is a simple machine with a rigid bar which can rotate about a fixed point or on a fixed line therefore, we can easily able to pull the doors with the help of handles. For example; seesaw, scissors etc.

Answer 2

Answer

this is your ok

Explanation:

of all