A block of mass M = 4.0kg is released from rest at point A as shown....

A block of mass M = 4.0kg is released from rest at point A as shown. Part AB of the track is frictionless and is one quarter of a circle of radius R=1.25m. The horizontal part of the track BC is rough with co-efficient of kinetic friction . The block comes to rest at C after moving a distance L = 6.25m. The block can be treated as a point particle.

[a] What is the speed (in m/s) of M at B?

[b] What is the value of μ_k?

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Expert Solution

genius_generous answered 1 year ago

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