A child has mass 24.0 kg and slides down a 23° incline with constant speed under the action of a 91.9 N frictional force acting up and parallel to the incline. What is the coefficient of kinetic friction between the child and the surface of the incline? ?k =

Q: A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their…

A: Given that: length of incline (book):  23 cm initial velocity: 0 m/s Angle of incline (book):  35o…

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A student presses a book between his hands, as the drawing indicates. The forces that he exerts on…

A: Given: Weight of the book, W=26.9 N co-efficient of static friction, μs=0.414

Q: Consider the figure shown in the following figure. You are lowering two boxes, one on top of the…

A: Frictional force is the force created when two surfaces collide and slide against one another.

Q: This first part is at a angle of 30 degrees and it's 3 meters long. The other is at 45 degrees and…

A: According to the question the diagram of the scenario is:

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 10.0 kg and the…

A: Given: The mass of the block A is 10 kg. The coefficient of the kinetic friction is 0.24. The angle…

Q: A bus of mass 760 kg requires 120 m to reach certain velocity value Vf. Ignore friction and drag…

A: SOlution:

Q: A 616-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A: Given data: Mass (m) = 616 kg Acceleration (a) = 0.19 m/s2 Inclined angle (θ) = 36° Acceleration due…

Q: moving.What is the coefficient of static friction between the shoe and the surface material? What is…

A:

Q: The figure shows a 2000 kg cable car descending a high hill. A counterweight of mass 1800 kg on the…

A:

Q: The figure below shows an object with mass m = 5.0 kg pulled up a ramp inclined at an angle of 8 =…

A: a) Draw the free-body diagram of the object.

Q: A sanding block is being pushed up a vertical wall by a force F that is being applied at an angle of…

A: Given  Coefficient of friction,u = 0.885  Mass of block M = 0.534 Kg  Applied force,F = ??  Angle =…

Q: In the figure, two blocks are connected over a pulley. The mass of blockA is 15.0 kg and the…

A:

Q: A 78 kg crate rests on a rough horizontal surface. The coefficient of static friction and…

A: We have been given that the grade should move with constant  Speed.  This means the great is in…

Q: I need help with this Hw Problem.

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Q: A 976-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A:

Q: Skid marks left by the driver are 56.0 m long and the roadway is level. Tires matching those on the…

A:

Q: ou have been talked into pulling two children on a sled in the snow. When you pull the rope tied to…

A: In this question we have been given that You have been talked into pulling two children on a sled in…

Q: A 40 N box is resting on a table when a 10 N force is applied to it horizontally. The coefficients…

A: Frictional force F = uN

Q: The 633-N force is applied to the 106-kg block, which is stationary before the force is applied.…

A: We will use basic newtonian mechanics to solve the question

Q: A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their…

A: Kinetic friction opposes the relative motion between the two surfaces. It is given by f=μkNWhere μk…

Q: A crate of milk chocolate is being moved up a 63° ramp as shown. The crate has a mass of 10 kg. The…

A: Given:θ=63°m=10kgF=1320 NN=1136 Nμk=0.180d = 1.9m

Q: The coefficient of friction between a 33kg exercise mat and the gym floor are us = 0.41 and uk =…

A: Givenμs =0.41μk =0.36m =33 kg

Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…

A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…

Q: A 2.00-kg block starts from rest at the top of a 30.0° incline and slides 2.00 m down the incline in…

A: Given data: Mass of the block, m=2.00 kg Distance travelled down the inclined plane, s=2.00 m Time…

Q: A shopper pushes a 6.4 kg cart at constant of 1.20 m/s speed along a rough horizontal surface by…

A: mass of cart = 6.4 kg constant speed = 1.20 m/s force applied = 21N θ = 38.3o below the horizontal…

Q: A 118 kg box sits on a flat surface where it has a static friction coefficient of μs = 0.524 and a…

A: The minimum force (Fmin) that must be applied to the box of mass m =118 Kg is resting on a flat…

Q: Which of the following is correct? The angle of friction is equal to depression angle at impending…

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Q: A car created 68.5 m long skid marks at a traffic wreck scene. A State Patrol investigator uses a…

A:

Q: A student measures the ANGLE of the incline to be TOO SMALL. How will this effect the student's…

A: The coefficient of friction depends on the material and roughness of the surfaces in contact and not…

Q: A 4 kg block is sliding down a vertical wall while being pushed by an external force as shown in the…

A:

Q: two masses are connected by a rope which passes over an ideal pulley as shown in the figure. Block A…

A:

Q: A shopper pushes a 7.4 kg cart at constant of 1.20 m/s speed along a rough horizontal surface by…

A:

Q: A Z-Drag is an arrangement of ropes in pulleys often used in rescue situations. Implemented…

A:

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: Compared with the force needed to keep a box to slide at constant velocity on a coarse surface, to…

A:

Q: Which of the following is correct? The angle of friction is equal to depression angle at impending…

A:

Q: A stubborn 146 kg mule sits down and refuses to move. To drag the mule to the barn, the exasperated…

A: Given: The mass of the mule is m = 146 kg The farmer pulls the mule with a maximum force is F = 604…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 6.50 kg and the…

A:

Q: 2. An athlete slides down from rest 40.0 meter along an icy hill which is 35 degrees from the…

A: Length of icy hill (L)=40 m Angle of inclination (θ)=35o Coefficient of kinetic friction (μ)=0.2…

Q: A 489-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A: let friction force is f  gravitational force down the incline  = mgSin31°  Now, by fbd of block…

Q: A shopper pushes a 7.7 kg cart at constant of 1.20 m/s speed along a rough horizontal surface by…

A:

Q: g up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between…

A: GivenAngle, θ=15°Initial velocity, u=30 m/sCoefficient of static friction between the tires and the…

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the…

A: If speed is constant net force acting on each block must be zero.

Q: What is the coefficient of kinetic friction μk between the block and the tabletop

A: Given,  mass of the block,  m=0.50 Kg spring constant,k=100 N/m horizontal length covered by block,…