In Fig shows a uniform metre rule of weight W supported on a fulcrum a

1.	In Fig shows a uniform metre rule of weight W supported on a fulcrum at the 60 cm mark by applying the effort E at the 90 cm mark. (a) State with reason whether the weight W of the rule is greater than, less than or equal to the effort E. (b) Find the mechanical advantage in an ideal case.
Answer» In Fig shows a uniform metre rule of weight W supported on a fulcrum at the 60 cm mark by applying the effort E at the 90 cm mark. (a) State with reason whether the weight W of the rule is greater than, less than or equal to the effort E. (b) Find the mechanical advantage in an ideal case.

In Fig shows a uniform metre rule of weight W supported on a fulcrum at the 60 cm mark by applying the effort E at the 90 cm mark. (a) State with reason whether the weight W of the rule is greater than, less than or equal to the effort E. (b) Find the mechanical advantage in an ideal case.

Answer»

In Fig shows a uniform metre rule of weight W supported on a fulcrum at the 60 cm mark by applying the effort E at the 90 cm mark.

(a) State with reason whether the weight W of the rule is greater than, less than or equal to the effort E.

(b) Find the mechanical advantage in an ideal case.