An object is moving to the left at constant speed while under the influence of three forces. Two of the forces are shown on the free body diagram (gridlines are included for scale): Which of the following could be the third force acting on the object (the scale of the gridlines below is the same as above)?

Block 1 (10 kg) is located on the surface of a table. A rope pulls on block 1 with a horizontal tension of 58 N to the right and a vertical tension of 60N upward. The coefficient of kinetic friction between the block and the surface equals 0.2. On a sheet of paper, draw the free body diagram for block 1 using the two- subscript notation from class. After completing the free body diagram, enter below each force and its x & y-components. Remember that the x-component is the "i" component and the y-component is the "j" component. FORCES on BLOCK 1 Weight force on block 1 by Earth W1E : jN Tension force on block 1 by Rope T1R = jN %3D Normal force on block 1 by Surface N1S = i+ jN %3D Frictional force on block 1 by Surface f1S = i + jN !! Submit Answer Tries 0/2 What is the acceleration a of block 1? j m/s2 a =

Two blocks each of mass m are fastened to the top of an elevator as in the figure below. The elevator has an upward acceleration a. The strings have negligible mass. (a) Find the tensions T1 and T2 in the upper and lower strings in terms of m, a, and g. T1 =       T2 =       (b) Compare the two tensions and determine which string would break first if a is made sufficient large.

A wooden box containing several objects slides down a ramp at a constant speed when the ramp is inclined at 18°. The total mass of the box and its contents is 6.3 kg. A second box of equal mass slides down a different ramp at a constant speed. The second ramp is inclined at 26°. Compare the coefficients of friction of the two ramps. Explain reasoning (I need help with which forces act in certain spaces and why)