In the figure above, block B with a mass mB = 8.5 kg is accelerating down a frictionless incline at a uniform rate. Block A is being pulled by a string attached between these two blocks and moves over a massless, frictionless pulley. The coefficient of friction between block A and the horizontal surface is m = 0.22. The angle between the incline and the horizontal is a = 42°. The resulting acceleration of the system along the horizontal and inclined surfaces is a = 1.65 m/s2.
(a) Draw and label the forces (not components) that act on block B as it slides down the incline, which is indicated by the dashed line.
(b) Calculate the normal force of the incline pushing on block B. If you need to draw anything other than what you have shown in part (a) to assist in your solution, use the space below. Do NOT add anything to the figure in part (a).
(c) Calculate the tension in the string connecting the two masses.
(d) On the diagram below, draw and label all the forces acting on block A.
(e) Determine the value of the mass mA for block A.
Answers: 2
Physics, 21.06.2019 23:20
According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.
Answers: 1
Physics, 22.06.2019 09:30
For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap
Answers: 1
In the figure above, block B with a mass mB = 8.5 kg is accelerating down a frictionless incline at...
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