Question

4. (i) In what way does an 'Ideal machine' differ from a 'Practical machine'?
(ii) Can a simple machine act as a force multiplier and a speed multiplier at the
same time?​

Answer 1

Explanation:

Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done.