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?
