Two boxes with masses m and M rest on a horizontal surface. Each box is mounted...
Two boxes with masses m and M rest on a horizontal
surface. Each box is mounted on tiny rollers and moves with
negligible friction. A force applied to m gives it an acceleration
am.
a) find the acceleration M undergoes if pushed by the same amount
of force.
b) the boxes have masses 2kg and 5 kg. A force on the lighter one
gives it an acceleration of 2 m/s^2. Calculate the acceleration of
the 5 kg box when it is pushed by the same amount of force.
Homework Answers
=
2×2/5 = 0.8 m/s2Add Answer to:
Two boxes with masses m and M rest on a horizontal
surface. Each box is mounted...
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Two masses M and m on the horizontal surface are mounted with an ideal massless pulley and a massless rope as it shown on the picture. The unknown force F acts on the end of the rope and causes the movement of both masses despite the friction with the surface. If you know a M, the acceleration of the mass \f. derive an expression for the acceleration of the mass m in terms of a M, M, m, and mu...
On the horizontal floor there are two boxes with masses m1 = 59 kg and m2...
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1) Consider two boxes: box B, with a mass of 3kg, placed on top box A, with a mass of 10kg. If box A is pushed with a force of 70N, what is the force of friction on box B? The coefficients of friction between boxes A and B are µs = 0.7 and µk = 0.4, while friction is negligible between box A and the ground. 2) A 1.5kg box is pushed up a 30o incline with a force...
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5. Two boxes are connected by a rope over a pulley. Box A is on a horizontal surface and box B hangs off vertically from the pulley at the edge of the surface A is on. Let the masses of these boxes be mA 5kg and m 2k9. Assume that the mass of the rope and the pulley, and the friction of the pulley is negligible. The coefficient of kinetic friction is μ.-0.2 between box A and the table. Find...
8 Two boxes of masses m and 3m are stacked (See Fig. 2.) The surface between...
8
Two boxes of masses m and 3m are stacked (See Fig. 2.) The surface between the more massive box and the horizontal surface is smooth and the surface between the boxes is rough. If the less massive box does not slide on the more massive box, what is the static friction force on the less massive box?
#8-#9 Four identical 100 N boxes are initially at rest on a rough horizontal surface. In...
#8-#9
Four identical 100 N boxes are initially at rest on a rough horizontal surface. In all cases, the coefficient of static friction between the box and the surface is 0.70 and the coefficient of kinetic friction is 0.25. Forces are applied as shown. 8. Circle the letter of the box (or boxes) subject to a frictional force of 25 N. A.C. P U 9. Circle the box(es) in equilibrium. A+B .70 25 N 50 N 12 Sa 100 N...
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Consider two masses: M=2.0 kg and M2 =1.5 kg. Mass M, moves on a horizontal surface where the coefficient of kinetic friction Mk = 0.40. Mass M2 is hanging freely. Two masses are connected by a strong cord of negligible mass that extends over a pulley. M - 2.0 kg He=0.40 M = 1.5 kg a) Draw Free Body Diagrams for the two objects b) Write the equations for the two masses in the direction of motion ( both x...
Two boxes sit side-by-side on a smooth horizontal surface. The lighter box has a mass of...
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Two masses M and m on the horizontal surface are mounted with an ideal massless pulley and a massless rope as it shown on the picture. The unknown force F acts on the end of the rope and causes the movement of both masses despite the friction with the surface. If you know a M, the acceleration of the mass \f. derive an expression for the acceleration of the mass m in terms of a M, M, m, and mu...
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8
Two boxes of masses m and 3m are stacked (See Fig. 2.) The surface between the more massive box and the horizontal surface is smooth and the surface between the boxes is rough. If the less massive box does not slide on the more massive box, what is the static friction force on the less massive box?
#8-#9
Four identical 100 N boxes are initially at rest on a rough horizontal surface. In all cases, the coefficient of static friction between the box and the surface is 0.70 and the coefficient of kinetic friction is 0.25. Forces are applied as shown. 8. Circle the letter of the box (or boxes) subject to a frictional force of 25 N. A.C. P U 9. Circle the box(es) in equilibrium. A+B .70 25 N 50 N 12 Sa 100 N...
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