Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 4, Problem 9P
To determine
The horizontal and vertical component of the force
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O Problem 3: A block with a mass of m = 25 kg rests on a frictionless surface and is subject
to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of
E = 8.5 N. The second has a magnitude of F, = 23.75 N and acts on the body at an angle 0 = 15°
measured from horizontal, as shown.
F2
F
A block of mass 2.00 kg is pushed up against a wall by a force P that makes an angle of e = 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.280.
(a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.)
|Pmin!
IP max
N
(b) What happens if |P| has a larger value than |Pmayl?
O The block slides up the wall.
O The block does not slide along the wall.
O The block slides down the wall.
What happens if |P| has a smaller value than |P
O The block slides up the wall.
P min1?
O The block does not slide along the wall.
O The block slides down the wall.
(c) Repeat parts (a) and (b) assuming the force makes an angle of e = 12.0° with the horizontal. Determine the possible values for the magnitude of P that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.)
|Pmin!
|Pmax
N
What happens…
A barge is pulled by two tugboats. If the resultant force exerted by the tugboats is 5kN force directed along the x-axis of the barge, determine the tensions in each of the rope knowing that a=45 degrees.
Chapter 4 Solutions
Physics Fundamentals
Ch. 4 - Prob. 1QCh. 4 - Prob. 2QCh. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Prob. 8QCh. 4 - Prob. 9QCh. 4 - Prob. 10Q
Ch. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Prob. 15QCh. 4 - Prob. 16QCh. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56P
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- Determine the resultant R of the three tension forces acting on the eye bolt. Find the magnitude of R.arrow_forwardA barge is pulled by two tugboats. If the resultant of the forces exerted by the tugboats is 3500 lb directed along the axis of the barge, determine the tension in each of the ropes for α = 35oarrow_forwardA body lies on a horizontal surface. The coefficient of friction between the body and the surface is k. Determine the angle α, at which the force acting to the body and causing its movement is the least.arrow_forward
- A particle of mass 0.5 kg is at rest on a rough plane inclined at an angle to the horizontal where sin = 3/5. The particle is just prevented fromsliding from the plane by a force of 2 N applied in an upward directionparallel to a line of the greatest slope of the plane.(a) Draw a figure showing all the forces acting on the particle. (b) Calculate the coefficient of friction between the particle and theplane.(c) Calculate by how much the force of 2 N must be increased so thatthe particle is about to move up the plane.arrow_forwardIf the resultant force is required to act along the positive y axis and have a magnitude of 5 kN . Determine the required magnitude of FB and its direction θ.arrow_forwardA force F of magnitude 920 lb is applied to point C of the bar AB as shown. Determine both the x-y and the n-t components of F.arrow_forward
- A block of mass 3.40 kg is pushed up against a wall by a force P that makes an angle of e 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.200. P (a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (If there is no maximum, enter NONE in that answer blank.) |Pmax N Pmin= N (b) What happens if |P has a larger value than |Pmaxl? OThe block slides up the wall OThe block does not slide along the wall The block slides down the wall. What happens if |P| has a smaller value than |Pmin? OThe block slides up wall O The block does not slide along the wall OThe block slides down the wall.arrow_forwardA block of mass m= 18.0 kg is held in place by a string on a frictionless plane inclined at an angle 270 . Find the tension in the string and the normal force exerted on the block by the plane. If friction is present, what is now the tension in the string if coefficient of static friction is equal to 0.3 and the block starts to slide down the plane?arrow_forwardA block is resting on an incline of slope 3:4. It is subjected to a force T=350 N on a slope of 5:12. Determine the x and y component of a force T and find the components of force T parallel and perpendicular to the incline.arrow_forward
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