Question

Please answer fast
Thank you​

Answer 1

Answer:

Option B is Correct!

Explanation:

Given:

An open Knife edge of mass (M)is dropped from a height(H) on a wooden floor. If the blade penetrates (S)  into the wood, the average resistance offered by the wood to the blade is = ?

Solution:

If retarding force = F then work done by this force = F.d

Fd = Mg (h+s)

F = Mg (1+h/s)

__________________________-----

Hence it proved that Option (B) Is correct!

Hope mate you got it!

Thanks for asking!

Keep Smile!