Work Energy And Power Question 70
Question: An open knife edge of mass ’m’ is dropped from a height ‘h’ on a wooden floor. If the blade penetrates upto the depth ’d’ into the wood, the average resistance offered by the wood to the knife edge is [BHU 2002]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: C
Solution:
Let the blade stops at depth d into the wood.
therefore
