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  3. a block of mass m = 4.0kg is released from rest at

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

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Physics

A block of mass M = 4.0kg is released fromrest at point A as shown. Part AB of the track isfrictionless and is one quarter of a circle of radiusR=1.25m. The horizontal part of the track BC isrough with co-efficient of kinetic friction . The blockcomes 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 (inm/s) of M at B?

A block of mass M = 4.0kg is released fromrest at point A as shown. Part AB of the track isfrictionless and is one quarter of a circle of radiusR=1.25m. The horizontal part of the track BC isrough with co-efficient of kinetic friction . The block comes torest at C after moving a distance L = 6.25m. Theblock can be treated as a point particle.

[b] What is the value ofμk?

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