Question

a meter scale made up of iron consists of load 100N at a distance of 40cm from the fulcrum then, find the effort applied to balance it.

Answer 1

Answer:

Explanation:

Question 2

State four ways in which machines are useful to us?

Solution 2

Machines are useful to us in the following ways:

(1) In lifting a heavy load by applying a less effort.

(2) In changing the point of application of effort to a convenient point.

(3) In changing the direction of effort to a convenient direction.

(4) For obtaining a gain in speed.