This will help you with the problem in this part of the exam. Here KE$,$ U and ME are kinetic, potential and mechanical energy respectively. p$$p$$ is the momentum.

Part A $-$ Conserved quantity

What is the conserved quantity while the lump of putty $($macun$)$ is dropping toward the frame?

ME onlyKE onlyp$$p$$ onlyp$$p$$ and MEKE and ME

SubmitRequest$$Answer

Part B

What is the conserved quantity in the collision of the lump of putty and the frame?

KE OnlyME Onlyp$$p$$ onlyp$$p$$ and MEME, KE and U

SubmitRequest$$Answer

Part C

What is the conserved quantity while the lump of putty and the frame are moving down together after the collision?

KE OnlyKE $-$ UME OnlyKE Onlyp$$p$$ only