Question

A, 2 m long wooden plank of mass 20
kg is pivoted (supported from below) at
0.5 m from either end. A person of mass
40 kg starts walking from one of these
pivots to the farther end. How far can the
person walk before the plank topples?​

Answer 1

Answer:

r denotes the radius of the circle.

d indicates the diameter of the circle.

c indicates circumference of the circle.

Formulas Related to Circles

The Circle Formulas are expressed as,

Diameter of a CircleD = 2 × rCircumference of a CircleC = 2 × π × rArea of a CircleA = π × r2