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Friction
Page 8
Questions (2,293)
3.A car with a mass of 1500 kg is parked on a hill with an incline of 20°.
a.What is the weight of the car? b.What is the normal
4 answers
asked by
Hunter
1,976 views
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 420 N. For the first 13 m the
4 answers
asked by
Cara
888 views
The drawing shows a 29.7-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two
3 answers
asked by
Tiffany
794 views
What is the acceleration of the upper block? The coefficient of kinetic friction between the lower block and upper block is
4 answers
asked by
Doug
1,589 views
The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.20 with the floor. If
4 answers
asked by
johnny
1,173 views
A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel
4 answers
asked by
Brandon
1,247 views
A slippery plastic block is resting in a ramp that makes an angle of 20 degrees with the horizontal. The coefficient of static
3 answers
asked by
Cody
402 views
A box of mass m rests on a rough, horizontal surface with a coefficient of static friction μs. If a force Fp arrow is applied
3 answers
asked by
joy
1,579 views
A 140 kg stationary crate is pulled by a force of 390 N along a horizontal surface.
a) The coefficient of static friction between
3 answers
asked by
Rose
1,944 views
A 4.00 kg block is accelerated along a level surface at 3.00 m/s^2. The applied force is 20.0 N.
What is the coefficient of
4 answers
asked by
Ryan
702 views
A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in
3 answers
asked by
Shreya
1,173 views
A 0.5kg object is given an initial velocityof 3m/s after when it slides a distance of 8m across a level floor whatis the
3 answers
asked by
king david
710 views
a constant force applied at an angle of 20 above the horizonal , pulls a 200 kg block, over a distance of 3 m, on a rough,
3 answers
asked by
Anonymous
689 views
a lawnmower with a mass of 12 kg is being pushed by a force of 150n horizontally and 40 n down. if the kinetic coefficient of
3 answers
asked by
lomonoyan
1,015 views
A 15.5-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 76.7 N
2 answers
asked by
sam
586 views
A baseball player slides into third base with an initial speed of 3.8m/s. If the coefficient of kinetic friction between the
4 answers
asked by
Marissa
1,476 views
A 284 kg crate is pulled along a level surface by an engine. The coefficient of kinetic friction between the crate and the
3 answers
asked by
Unknown
1,035 views
A tray is moved horizontally back and forth in simple harmonic motion at a frequency of f = 1.86 Hz. On this tray is an empty
3 answers
asked by
Donna
1,634 views
You push a block of mass m against a horizontal spring, compressing the spring a distance x. Then you release the block, and the
3 answers
asked by
Rachel
1,658 views
A cup of coffee is sitting on a table in an airplane that is flying at a constant altitude and a constant velocity. The
3 answers
asked by
Anonymous
715 views
An engine block of mass M is on the flatbed of a pickup truck that is traveling in a straight line down a level road with an
3 answers
asked by
Zack
942 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
3 answers
asked by
ally
678 views
A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on a horizontal surface, requires a 73 N
4 answers
asked by
ann
3,816 views
A 100 N force is applied to the side of a crate resting on a level floor. The crate has a mass of 50 kg. If the coefficient of
3 answers
asked by
Anonymous
1,743 views
Suppose the force of friction on a sliding object is 25 N. What is the force needed to maintain a constant velocity?
5 answers
asked by
Michelle
1,950 views
A banked circular highway curve is designed for traffic moving at 57 km/h. The radius of the curve is 211 m. Traffic is moving
4 answers
asked by
D
1,722 views
A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the
3 answers
asked by
Bala
711 views
A 435 N box is sliding down a 40 degree incline. If the acceleration of the box is 0.250 m/s^2, what is the force of friction on
3 answers
asked by
Mercedes
1,503 views
A banked circular highway curve is designed for traffic moving at 55 km/h. The radius of the curve is 220 m. Traffic is moving
9 answers
asked by
Vipre
3,519 views
you find that it takes a horizontal force of 160 newtons to slide a box along the surface of a level floor at constant speed .
3 answers
asked by
oslec
1,313 views
You are pushing a 53kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22deg with the
4 answers
asked by
Shaila
1,967 views
A boy pulls a sled of mass 5.0 kg with a rope that makes an 60.0° angle with respect to the
horizontal surface of a frozen pond.
4 answers
asked by
Anonymous
6,950 views
A manager of a restaurant pushes horizontally with a force of magnitude 150 N on a box of melons. The box moves across the floor
4 answers
asked by
leslie
1,585 views
a 25 lb block has an initial speed of vo=10ft/s when it is midway between springs A and B. After striking spring B, it rebounds
3 answers
asked by
sarah
1,838 views
The Wall of Death in an amusement park is comprised of a vertical cylinder that can spin around the vertical axis. Riders stand
3 answers
asked by
shelby
2,779 views
A team of dogs is pulling a sled that has a load of 2500 kg at a constant speed of 5.0 m/s. The coefficient of kinetic friction
3 answers
asked by
Suzanne
2,407 views
Find the acceleration reached by each of the two objects shown if the coefficient of kinetic friction between the 7.00-kg object
2 answers
asked by
Jodran
559 views
A roller coaster with a mass of 500.0 kg starts from a height of 27.0 meters with a speed of 5.2 m/s. It descends to a height of
2 answers
asked by
Alex
778 views
The coefficient of kinetic friction between a rubber tire and a dry concrete road is 0.700. What is the distance in which a car
3 answers
asked by
Liza
3,582 views
A 5kg box on a horizontal table is pushed by a horizontal force of 15N. If the coefficient of friction is 0.4, will the box
4 answers
asked by
Rheabelle
3,778 views
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate
4 answers
asked by
Denny
2,853 views
A 14.4-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 66.9 N
3 answers
asked by
sarah
675 views
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a
3 answers
asked by
johnny
507 views
A 46.2-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.566 and 0.440,
2 answers
asked by
Kristyn
515 views
A coin is placed on a large disk which rotates uniformly at a rate of 2 rot/s. The coefficient of friction between the coin and
4 answers
asked by
Anonymous
817 views
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall.
3 answers
asked by
Anonymous
1,997 views
A trash can with a mass of 5 kg has a coefficient of static friction of μs = 0.80 and a coefficient of kinetic friction of μk
3 answers
asked by
Ray
1,798 views
A block of mass m is initially at rest at the top of an inclined plane with a height = 4.4 m which makes and angle of θ = 17
3 answers
asked by
carlo
2,242 views
A 20g steel weight is placed on the edge of 1 30cm diameter plastic disk. The coefficient of static friction between the steel
3 answers
asked by
Kristy
494 views
A person, sunbathing on a warm day, is lying horizontally on the deck of a boat. Her mass is 59.6 kg, and the coefficient of
3 answers
asked by
Sadie
1,286 views
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