A 5.5 kg block that is initially at rest on a frictionless horizontal surface was pulled with a constant force of 3.8 N. At what distance must it be pulled before its speed is 5.2 m/s?

Q: A 2 kg object is released from rest at the top of a frictionless incline of an 39.1 angle. Given the…

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Q: Starting from rest, a 99-kg firefighter slides down a fire pole. The average frictional force…

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Q: A machine carries a 8.0 kg package from an initial position of d ; = (0.6 m) i + (0.79 m)j + (0.26…

A: Given: di=0.6m i^ + 0.79m j^ + 0.26m k^df=10.5m i^ + 15.0m j^ + 10.2m k^∆t = 15 sF = 4.0N i^ +7.0N…

Q: A 5 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

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Q: A mass of 3.00 kg is initially at rest upon a frictionless incline with a 30.8 degree angle of…

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Q: A constant applied force F, of 13.0 N pushes a box with a mass m = 6.00 kg a distance x = 15.0 m…

A: The work-energy theorem is used to calculate the final velocity of the box.…

Q: A 70 kg firefighter slides, from rest, 4.3 m down a vertical pole. (a) If the firefighter holds onto…

A: Given : height of pole, h = 4.3 m              mass of firefighter, m = 70 kg              average…

Q: A 50kg wooden crate is being pushed up a ramp with a force of 100N (parallel to the ramp) and is…

A: Given:-  The mass of the wooden creat is m = 50 kg  The force applied on the crate up the ramp  is F…

Q: The figure shows a cord attached to a cart that can slide along a frictionless horizontal rail…

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Q: A 600 kg roller coa sters starts at A and moves to B and then to C under the influence of gravity…

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Q: A 19-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 32 N.…

A: GivenMass of the sled is Applied horizontal force is Initial speed of the of the sled is Final speed…

Q: Professor Walo pushes the 80 kg grandmother by a slope of 30 °, applying a force F an angle of 15 °…

A: Given, Mass,m=80 kg Angle of incline,θ=30° Angle of force with inclined,α=15° Coefficient of…

Q: 10) Starting from rest, a 97.0 kg firefighter slides down a fire pole. The average frictional force…

A: The given values are, m=97.0 kgFk=800 Nv=3.60 m/s

Q: The only force acting on a 5.0 kg body as it moves along a positive x axis has an x component Fx =…

A: Part-a Given: The mass of the body m = 5 kg. The force function Fx = -6x N. The initial velocity of…

Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…

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Q: A 6.0-kg block initially at rest is pulled to the right along a frictionless, horizontal surface by…

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Q: The kinetic friction force between a 8.1-kg object and a horizontal surface is 72 N. If the initial…

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Q: A 80 kg bobsled is pushed along a horizontal surface by two people.  After the bobsled is pushed a…

A: mass, m = 80 kg  distance, s = 5 m  initial speed, u =0 m/s  final speed, v = 8 m/s

Q: A student pushes a physics textbook of mass 1.11 kg across a table with a horizontal force of 5.81…

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Q: The 2-kg block is subjected to a force having a constant direction and a magnitude F = (300/(1+ s))…

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Q: A child on a sled with a total mass of 45.0 kg slides down an icy hillside with negligible friction.…

A: The vertical height of the hill is about 0.46 m. Here, we use conservation of energy and solve for…

Q: An applied force of 43 N directed at an angle of -11.6 degrees with respect to the +x direction acts…

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Q: A 2.1 x 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 15° with…

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Q: A 4.73kg block is pulled across a floor by a 25.01 N force. The coefficients of static and kinetic…

A: Given Data: Mass of the block (m) = 4.73 kg.Force on the block (F) = 25.01 N.Coefficient of static…

Q: 7. The 20-kg crate is subjected to a force having a constant direction and a magnitude F = 100 N.…

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Q: An applied force of 14.3 N acts on a 2.50 kg mass that is initially at rest. Over a distance of 2.18…

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Q: A boy pulls a bag of baseball bats across a ball field toward theparking lot. The bag of bats has a…

A: The acceleration is,

Q: Starting from rest, a 28.4 kg child rides a 9.75 kg sled down a frictionless ski slope. At the…

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Q: a mother and her child are skiing together, and the mother is holding the end of a rope tied to the…

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Q: A box with mass m = 1.5 kg is sliding with a speed of 4.0 m/s on a horizontal surface. When at x =…

A: Given that: m=1.5 kgv=4 m/sf(x)=-(10+40x) Nd=?Wf=Work done by friction

Q: A 45.0 kg object is pushed up an incline as shown with a horizontal force of 300.0 N. The object is…

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Q: A wheelchair with a initial speed of 0.63 m/s is going up a ramp that has a 45° angle. What is the…

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Q: A child is sitting in a wagon at the top of a hill. The mass of the child and wagon together is 40.0…

A: Given Data: The child and wagon together is: m=40.0 kg The distance covered on the inclined hill is:…

Q: A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of 0.28 at a…

A: Given: A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of…

Q: A 100 kg skier starts from rest at the top of a ski slope that is 50 m long. If his final speed at…

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Q: A roller-coaster vehicle has a mass of 505 kg when fully loaded with passengers (see figure).   (a)…

A: a) The expression for force of the track on the vehicle is F=mg+v2r Substitute values in the above…

Q: An object of mass m=2 kg placed on a rough horizontal surface is given an initial speed of 10 m/s…

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Q: An adult dolphin weighs around 1410 N. How fast must it be moving as he leaves the water vertically…

A: The maximum height (h) = 2.30 m Now for the velocity (u) of the dolphin, we use the kinematics…

Q: A 50 g particle that can move along the x-axis experiences the net force Fx=2.0t^2 N where t is…

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Q: Calculate the final speed vs of a 2.00-kg object that is pushed 2.00 kg for 34.0 m by a 30.0-N force…

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Q: At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m…

A: Mass, m = 325 kgFriction force, F = 60 NPull force, P = 964.079 N at 15°Displacement, d = 50 m

Q: A hockey puck with mass 0.166 kg is pushed across the ice with a constant force of 0.89 N. The…

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Q: A man pushing a crate of mass  m = 92.0 kg  at a speed of  v = 0.860 m/s  encounters a rough…

A: SOlution: Given that m = 92 kgv = 0.86 m/sL = 0.65 mcoefficient of friction = 0.36 F = 279 N

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.