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Figure 2 B A

Figure 2 B A

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 40P: A sledge is being pulled by two horses on a flat terrain. The net force on the sledge can be...
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Draw (and upload) a free-body-diagram for block B under the conditions described in question 4 (immediately before this question).  The only object in this diagram should be block B, and only forces appropriate for a free-body-diagram of block B should appear.  All force vectors must be labeled with letters and subscripts as defined for this class. 

This question is very similar to the previous question but read and calculate carefully! The situation and the numbers have both changed. This question refers to the situation in Figure 2, above. The mass of block A is 3.4 kg. The mass of cart Bis 5.7 kg. The mass of cart C is 8.2 kg. The plane under block B is inclined at an angle theta = 0 = 63 degrees away from vertical. The plane under cart C is inclined at an angle phi = o = 32 away from vertical. The coefficient of kinetic friction between block B and the plane beneath it is 0.66. The blocks are all moving. The velocity of Block A points upward, and none of the strings stretch. Assume the only significant forces in this situation are tension forces, normal forces, friction only between block B and the plane beneath it, and gravity with g = 9.81 m/s?. Calculate the acceleration of block A, in units of meters per second squared. The sign, positive or negative, of your answer is important and for this problem a positive acceleration points downward for block A.
Transcribed Image Text:This question is very similar to the previous question but read and calculate carefully! The situation and the numbers have both changed. This question refers to the situation in Figure 2, above. The mass of block A is 3.4 kg. The mass of cart Bis 5.7 kg. The mass of cart C is 8.2 kg. The plane under block B is inclined at an angle theta = 0 = 63 degrees away from vertical. The plane under cart C is inclined at an angle phi = o = 32 away from vertical. The coefficient of kinetic friction between block B and the plane beneath it is 0.66. The blocks are all moving. The velocity of Block A points upward, and none of the strings stretch. Assume the only significant forces in this situation are tension forces, normal forces, friction only between block B and the plane beneath it, and gravity with g = 9.81 m/s?. Calculate the acceleration of block A, in units of meters per second squared. The sign, positive or negative, of your answer is important and for this problem a positive acceleration points downward for block A.
The diagram in Figure 2, below, shows the situation for questions 3, 4, 5, and 6. You probably should read the instructions for questions 5 and 6 before solving problems 3 and 4. Figure 2 B A Block A is hanging from a massless string which runs over a massless and frictionless pulley and connects to Block B. Block B slides over an inclined plane with ordinary kinetic friction. The plane under block B is inclined at an angle theta = 0 away from vertical. The other side of Block B is connected to another massless string which runs over another massless and frictionless pulley to connect to Cart C. Cart C rolls without friction over a plane which is inclined at an angle of phi = p away from vertical.
Transcribed Image Text:The diagram in Figure 2, below, shows the situation for questions 3, 4, 5, and 6. You probably should read the instructions for questions 5 and 6 before solving problems 3 and 4. Figure 2 B A Block A is hanging from a massless string which runs over a massless and frictionless pulley and connects to Block B. Block B slides over an inclined plane with ordinary kinetic friction. The plane under block B is inclined at an angle theta = 0 away from vertical. The other side of Block B is connected to another massless string which runs over another massless and frictionless pulley to connect to Cart C. Cart C rolls without friction over a plane which is inclined at an angle of phi = p away from vertical.
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