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2. Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficients of kinetic friction and static friction between block B and the table are x = 0.25 and us= 0.30. Block A has a mass of 3kg and block B has a mass of 4kg. a) What is the maximum mass block C can have before block B will start to move? Max m=4.2kg b) If block C has a mass of 7kg and was 1m above the ground, how long would it take block C to hit the ground starting from rest? m 0.97 1

2. Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficients of kinetic friction and static friction between block B and the table are x = 0.25 and us= 0.30. Block A has a mass of 3kg and block B has a mass of 4kg. a) What is the maximum mass block C can have before block B will start to move? Max m=4.2kg b) If block C has a mass of 7kg and was 1m above the ground, how long would it take block C to hit the ground starting from rest? m 0.97 1

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2. Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficients of kinetic friction and static friction between block B and the table are x = 0.25 and us= 0.30. Block A has a mass of 3kg and block B has a mass of 4kg. a) What is the maximum mass block C can have before block B will start to move? Max m=4.2kg b) If block C has a mass of 7kg and was 1m above the ground, how long would it take block C to hit the ground starting from rest? a= 2.142 t = 0.975 50
Transcribed Image Text:2. Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficients of kinetic friction and static friction between block B and the table are x = 0.25 and us= 0.30. Block A has a mass of 3kg and block B has a mass of 4kg. a) What is the maximum mass block C can have before block B will start to move? Max m=4.2kg b) If block C has a mass of 7kg and was 1m above the ground, how long would it take block C to hit the ground starting from rest? a= 2.142 t = 0.975 50
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