A 50kg sack of rice is pushed down with uniform speed across a horizontal floor by a force directed 30° below the horizontal. The coefficient of friction is 0.25. find the magnitude of the force.

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Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 58P: Calculate the maximum acceleration of a car that is heading up a 4.00slope (one that makes an angle...
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Compute the following:
1. A 50kg sack of rice is pushed down with uniform speed across a horizontal floor
by a force directed 30° below the horizontal. The coefficient of friction is 0.25. find
the magnitude of the force.
2. Consider the illustration below which is at rest. The block of steel weighs 800 N.
the coefficient of static friction between the block and table is 0.3. what maximum
weight can the steel ball have so that the block will still remain at rest?
T2
block
60°
800N
T
T3
table
Hy= 0.3
W2
Steel ball
3. A 25kg bag of cement is lifted by means of a rope to the second floor of a building
being constructed. Find the acceleration of the bag if the tension on the rope is (a)
245N, (b) 735N.
Transcribed Image Text:Compute the following: 1. A 50kg sack of rice is pushed down with uniform speed across a horizontal floor by a force directed 30° below the horizontal. The coefficient of friction is 0.25. find the magnitude of the force. 2. Consider the illustration below which is at rest. The block of steel weighs 800 N. the coefficient of static friction between the block and table is 0.3. what maximum weight can the steel ball have so that the block will still remain at rest? T2 block 60° 800N T T3 table Hy= 0.3 W2 Steel ball 3. A 25kg bag of cement is lifted by means of a rope to the second floor of a building being constructed. Find the acceleration of the bag if the tension on the rope is (a) 245N, (b) 735N.
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