Speed
Pulley are force multipliers because they expense the distance over which it operates.
Why are pulley force multipliers? Pulley are force multipliers because they expand the distance over which it operates.
A tin can opener.
tin opener
The can opener.
For opening tins
Force and Speed <--- Science
With a tin opener?
A tin-opener.
The primary function of the can opener is to open tin cans. Though the first tin can have been in use since 1772 in The Netherlands, the first tin can was patented in 1855, though earlier un-patented models may have invented.
It is not possible.