4) Block A has mass ma and block A B has mass mB. Blocks A and B are connected as shown by a light cord passing around an ideal, frictionless pulley. The coefficient of kinetic friction between all F B surfaces is given by Hk. Block B is being dragged to the left at a constant speed by force F. Draw a free body diagram for а) block A. b) Draw a free body diagram for block B. c) Find an expression for the tension in the rope in terms of uk, mA, and constants d) Find an expression for force F in terms of uk, mA, M B, and constants.

A block of mass M=8.2 kg placed on a table is pulled to the right by a rope with tension T=40.0 N as in Figure 5. Calculate the minimum coecient of static friction to keep the object at rest.

A woman at an airport is towing her 22.0-kg suitcase at constant speed by pulling on a strap at an angle 0 above the horizontal. She pulls on the strap with a 29.5-N force, and the friction force on the suitcase is 20.0 N. (a) Draw a free-body diagram of the suitcase. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen This answer has not been graded yet. (b) What angle does the strap make with the horizon? ° counterclockwise from the horizontal (c) What is the magnitude of the normal force that the ground exerts on the suitcase? Need Help? Read It Watch It

6. A cable is pulling on box B, causing both boxes to move together to the right. Make a free-body diagram of block A a. if the table is frictionless, and b. if there is friction between block B and the table and the pulling force is equal in magnitude to the friction force the table exerts on block B. B Horizontal table Pull