Weight = mg = 20(9.8) = 196kg = 196N A 20.0 kg box rests on a table. What is the

Question

Weight = mg = 20(9.8) = 196kg = 196N A 20.0 kg box rests on a table. What is the weight of the box and the normal force acting on it? A 10.0 kg box is placed on top of the 20.0 kg box. Determine the normal force that the table exerts on the 20.0 kg box and the normal force that the 20.0 kg box exerts on the 10.0 kg box. 30(9.8) = 294 kg = 294N A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 30.0 N, 60.0N, 90.0 N. One 3.2 kg paint bucket is hanging by a massless cord from another 3.2 kg paint bucket. If the buckets are at rest, what is the tension in each cord? A person pushes a 14.0 kg lawnmower at constant speed with force of F = 88.0 N directed along the handle, which is at an angle 45.0 degrees to the horizontal. Draw the free body diagram showing all forces acting on the mower. Calculate the horizontal friction force Calculate the normal force Two masses are connected by a rope and pulley as shown. How large a mass would the box on table need to have to prevent motion? The coefficient of static friction is 0.30. A small box is placed against a rough wall by somebody pushing it with a force of 28 degrees above the horizontal. the coefficients of static and kinetic friction are 0.40 and 0.30, respectively. The box slides down unless the applied force has magnitude of 13 N. What is the mass of the box?

Explanation / Answer

1)a)196N b)294.3 table exert on 20 kg 98 N normal force on 10kg

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