Question

Plzz help! i need it now!!!!
be 100% sure of the answer plzzz

Answer 1

Equal effort force

Step-by-step explanation:

A class 1 lever has the support between the load and the effort hence the load tilts the plain at one end containing the support we would require an effort equal and opposite to the load to ensure movement .

Answer 2

The answer is friction


The output work is always less than the input work because some of the input work is used to overcome friction