An airplane starts from rest on the runway. The engines exert a constant force of 78.0 kN on the body of the plane (mass 9.20 × 104 kg) during takeoff. How far down the runway does the plane reach its takeoff speed of 64.6 m/s?

Q: A high-speed dart is shot from ground level with a speed of 150 m/s at an angle 30° above the…

A: Given that,speed, v=150 msangle, θ=30°time, t=4 s

Q: A 4 kg particle moves along an x axis according to x(t) = −1 + 4t − 5t3 , with x in meters and t in…

A:

Q: A block is sliding down a ramp at an angle of 0 = 29° to the horizontal. Its initial speed is 1.2…

A:

Q: A boat has a mass of 6.43 x 10³ kg. Its engines generate a drive force of 4.5 x 103 N due west,…

A:

Q: A box of apples of mass 22 kg slides 2.5 m down a ramp inclined at 44o to the horizontal.  The force…

A: mass of box of applies, m = 22 kg Length of ramp, L = 2.5 m Friction force, f = 79 N Degree of…

Q: A 3 kg object moves along an x axis according to x (t) = 9 + 8 t + 7 t 2 +9 t 3, with x in meters…

A:

Q: An elevator filled with passengers has a total mass of 1960 kg and is suspended from a single cable.…

A: Total mass of elevation with passengers m = 1960 kgInitial the elevator is at rest so, u = 0The…

Q: You go to the playground and slide down the slide, a 3.0-m-long ramp at an angle of 40° with respect…

A:

Q: In a circus performance, a monkey on a sled is given an initial speed of 3.1 m/s up a 26◦ incline.…

A: Given that :v=3.1 m/sθ=26°μk=0.71m=20.2 kgwhere,v is the initial speedθ is the anglem is the massμk…

Q: A 35.0-kg child swings in a swing supported by two chains, each 2.90 m long. The tension in each…

A: The child's mass:the length of the chains: The tension in the chains at the lowest point:

Q: A husky is pulling a sled loaded with cargo (total mass m = 34kg) along some snow, which has…

A:

Q: A person pushes a 0.20 kg lunch tray across a table

A: Required : The normal force, N.

Q: F

A: Given: Mass m1 = 4.7 kg. Mass m2 = 2.4 kg. Upward force F = 6.4 N. Downward acceleration (a) = 4.7…

Q: the elevator's speed at

A:

Q: A 170-N crate is being pulled up a perfectly smooth ramp that slopes upward at 14.0° by a pull that…

A:

Q: A 0.30 kg puck is being pushed across a table with a horizontal force of 2.0 N. It starts from rest…

A:

Q: A small block is released from rest at the top of a frictionless incline. The distance from the top…

A:

Q: A student launches a small rocket which starts from rest at ground level. At a height h=1.04km, the…

A:

Q: Y1 Y2

A: y1 = 8.0 m final speed v = 7.7 m/s

Q: A man pushes an object to the right and exerts a force which has a horizontal compotent of F = 33 N.…

A: External force on the body F = 33 NFrictional force fs = 15 NMass of the object m = 31 kg.Given time…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A:

Q: A particle of mass 5.4 kg moves along the horizontal x-axis. In the x direction the only force…

A:

Q: he top of a ramp, which is inclined at an angle of 20 degrees with respect to the horizontal.…

A:

Q: A mover has to move a heavy sofa of mass 101 kg to the second floor of the house. He uses a rope to…

A:

Q: You are pushing a metal crate against a metal floor. The two surfaces have a static coefficient of…

A: Given data: Coefficient of static friction (μs) = 0.62  Coefficient of kinetic friction (μk) = 0.50…

Q: A person pushes a block of mass M = 6.0 kg with a constant speed of 5.0 m/s straight up a flat…

A:

Q: A mass m slides up an incline (with = 32.1 degrees above the horizontal) until it stops momentarily…

A: Draw the free-body diagram of the mass.

Q: Pushing a block over horizontal surfaces, a person examines their understanding of friction. In the…

A: The frictional force acts in the opposite direction of the motion of an object. If the object is…

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: rier with a mass of 9.38 kg to the bungie cord and let the dog drop. The cord is 100 m long when…

A: The spring constant k = 48.1 N/m  You attach a somewhat nervous Boston Terrier with a mass of m =…

Q: A physics book slides off a horizontal tabletop with a speedof 1.10 m/s. It strikes the floor in…

A: Given: The initial velocity of the book in x-direction, ux = 1.1 m/s. The total time taken by the…

Q: Buster wants to demonstrate constantly-accelerated motion by letting a frictionless ice cube slide…

A: Concept used: A component of gravity acts horizontal to incline and forces ice-cube down the…

Q: A block starting from rest slides a distance of 5 m down an inclined plane which makes an angle of…

A: Given Block slide down at a distance, d=5m inclination angle, θ=370 coefficient of friction between…

Q: A golfer hits a shot to a green that is elevated 3.40 m above the point where the ball is struck.…

A:

Q: A bridge that was 11.2 m long has been washed out by the rain several days ago. How fast must a car…

A: The given data are: l=11.2 md=3.3 m Here, l is the length of the bridge and d is the distance.

Q: Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of…

A: Given,

Q: A 2 kg golf ball moves along an x axis according to x(t) = 1013 – 2.80f2 + 7.4t + 15, with x in…

A:

Q: A horizontal force of magnitude 157 N is used to push a 6.84-kg object up an inclined plane. The…

A: Normal force is the perpendicular force acting on the body by the surface that is a resultant of a…

Q: A horizontal force of magnitude F = 56.2 N pushes on a block of mass m = 5.87 kg. The block is on a…

A: The objective of the question is to find the acceleration of the block on the incline in terms of…

Q: A package of mass m = 2.00 kg is released from rest at the top of an inclined plane as seen in the…

A:

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.