A 100-N applied force (30 degrees to the horizontal) accelerates
a box across a horizontal sheet of ice (see diagram). Casey, Jack
and Ronnie are discussing the problem. Casey suggests that the
normal force is 200 N; Jack suggests that the normal force in the
diagram is 150 N; and Ronnie suggests that the normal force is 100
N. While all three answers may seem reasonable, only one is
correct. Indicate which two answers are wrong and explain why they
are wrong
Homework Answers
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A 100-N applied force (30 degrees to the horizontal) accelerates
a box across a horizontal sheet...
A force of 60 N is required to start a 10kg box moving across a horizontal...
A force of 60 N is required to start a 10kg box moving across a horizontal floor. (a) What is the coefficient of static friction between the box and the floor? (b) If the 60 N force continues, the box accelerates at 3m/s^2. What is the coefficient of kinetic friction? P.S please write the right equations and answers asap!!
A box weighs 60 N and is sitting on a horizontal frictionless floor. A 100 N...
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A force of 175 N is applied at an angle of 37 degrees above the horizontal. If the weight of the box is 275 N, determine the maximum kinetic friction force (in N) between the box and the floor if the coefficient of friction is 0.48. Assume friction force is positive (i.e., no sign needed).
A 100 N force is applied to a box at an angle of 60° to the...
A 100 N force is applied to a box at an angle of 60° to the horizontal via a rope. How much force “lifts” the box and how much “pulls” it along the surface? a. 86.6 N; 50 N b. 100 N; 100 N c. 50 N; 50 N d. 50 N; 86.6 N
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A box is being accelerated across perfectly frictionless ice by a 30-N force suddenly the box...
A box is being accelerated across perfectly frictionless ice by a 30-N force suddenly the box encounters a second force of 30 N in the opposite directionWith both forces acting on the box it A . is brought to a rapid halt B. continues to accelerate C . continues at the speed it had when it encountered the second force D. none of the above
3) A constant pulling force of 150 N applied at an angle of 21.7° above the...
3) A constant pulling force of 150 N applied at an angle of 21.7° above the horizontal, accelerates a crate across a rough horizontal surface. The has mass 35.2 kg, and the acceleration is 0.571 m/s. a) What is the normal force acting on the crate? b) What is the friction force acting on the crate? c) What is the coefficient of kinetic friction between surface?
A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and...
A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and μk= 0.55 (kinetic). You push on the box HORIZONTALLY (parallel to the floor) with varying applied force. For each applied force below, find the magnitude of the friction force exerted by the floor on the box(in Newtons), and state whether the friction is static or kinetic. (a) Applied force 100 N. (b) Applied force 150 N. (c) Applied force 190 N. (d) Applied force...
A8 kg box is being pulled across a horizontal surface. The pulling force has a magnitude...
A8 kg box is being pulled across a horizontal surface. The pulling force has a magnitude of 55 N and acts at an angle of 30° above the horizontal. The coefficient of kinetic friction between the surface and box is 0.2. What is the normal force acting on the box?
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet...
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet of ice with a 30.0 force applied to it. Coefficient of friction is 0.22 Determine: a. The force of friction on the box The acceleration of the box c. Later, the horizontal force is reduced to 20.0-N. Determine the acceleration of the box for this condition. d. Is this static of kinetic friction D. A block is pulled along a horizontal surface by a...
3) A constant pulling force of 150 N applied at an angle of 21.7° above the horizontal, accelerates a crate across a rough horizontal surface. The has mass 35.2 kg, and the acceleration is 0.571 m/s. a) What is the normal force acting on the crate? b) What is the friction force acting on the crate? c) What is the coefficient of kinetic friction between surface?
A8 kg box is being pulled across a horizontal surface. The pulling force has a magnitude of 55 N and acts at an angle of 30° above the horizontal. The coefficient of kinetic friction between the surface and box is 0.2. What is the normal force acting on the box?
C. A 15 0-kg box has a rubber bottom. It is sliding on a horizontal sheet of ice with a 30.0 force applied to it. Coefficient of friction is 0.22 Determine: a. The force of friction on the box The acceleration of the box c. Later, the horizontal force is reduced to 20.0-N. Determine the acceleration of the box for this condition. d. Is this static of kinetic friction D. A block is pulled along a horizontal surface by a...
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