Question

what is the of plank question and answer​

Answer 1

Answer:

intially the center of mass is at rest.

therefore the center of mass doesnt move it horizontal direction

it is

8

L

distance from the end of the man

let'x' be the displacement of plank when the man walks to the other side

then(L-x) be the displacement of the man

let intially the center of mass be at originx

i

=0

since the center of mass stationery

x

i

=x

f

8

L

=

m+

3

m

m(L−x)+

3

m

(

2

L

−x)

we get x=

4

3L

the man moved L−x=

4

L

distance

Answer 2

Explanation:

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