Question

A man uses a 2.5 m long crowbar to raise a load of 1000 N. Find: a. the effort needed to lift the load and b.the mechanical advantage of the crowbar. The fulcrum is located at 2 m from the effort end.
Give the answer with process.
In my opinion, you can do it very well.​

Answer 1

Answer:

52

Step-by-step explanation:

Given number => 1104

Nearest square number => 1156

1156 - 1104 = 52

52 should be added to 1104 to get a perfect square number .

Square root of 1156 = 34

THANKS

Answer 2

4

Explanation:

Load arm = 2.5 m - 2 m = 0.5 m

Principal of lever,

Effort × Effort arm = Load × Load arm

=E × 2 = 1000 × 0.5

=E = 1000×0.5/2 = 250

Mechanical advantage=Load/Effort = 1000/250 = 4 (ans).