Question

why can't a machine act as both a speed multiplier and a force multiplier

Answer 1

It is impossible for a machine to act as both a force and speed multiplier simultaneously. This is because one has to increase one quantity to affect other, both cannot be affect at the same time

Answer 2

Explanation:

It is not possible for a machine to act as a force multiplier and speed multiplier simultaneously. This is because machines which are force multipliers cannot gain in speed and vice-versa.