Part 1)
The distance between positions B and C is 0.320 m. What is the speed of the mass at point B?
Part 2)
What is the magnitude of the work done on the mass by friction between positions A and B?
Part 3)
The curved part of the ramp (between positions A and B) is now coated with a special frictionless material. Between positions B and C the friction properties remain unchanged. The mass is replaced at position A and once
again released from rest. What is the new speed of the mass at position B and at position C?
Fig: 1