1) A block slides down a frictionless incline. The incline is fixed in place on a table.
i. Is the net force on the block always zero? Explain.
ii. Is the net force on the incline always zero? Explain.
iii. Is the net force on the block-incline system always zero? Explain.
iv. Is the momentum of the block conserved? Explain.
v. Is the momentum of the incline conserved? Explain.
vi. Is the momentum of the block-incline system conserved? Explain.
2) Suppose the incline in part b is now placed on a frictionless table.
i. Is the net force on the block always zero? Explain.
ii. Is the net force on the incline always zero? Explain
iii. Is the net force on the block-incline system always zero? Explain.
iv. Is the momentum of the block conserved? Explain.
v. Is the momentum of the incline conserved? Explain.
vi. Is the momentum of the block-incline system conserved? Explain.