The bob of a simple pendulum (mass 𝑚 and length 𝑙) dropped from a horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The K.E. of the block will be

May 10, 2022

by Ezee_Notes

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Physics Problems

Question: The bob of a simple pendulum (mass 𝑚 and length 𝑙) dropped from a horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The K.E. of the block will be

(A) 2 𝑚𝑔𝑙

(B) 𝑚𝑔𝑙/2

(D) 0

Answer: Option (C)

Solution:

The bob of a simple pendulum (mass 𝑚 and length 𝑙) dropped from a horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The K.E. of the block will be