A flat cushion of mass m is released from rest at the corner of the roof of a building, at height h. A wind blowing along the side of the building exerts a constant horizontal force of magnitude F on the cushion as it drops as shown in the figure below. The air exerts no vertical force. If the cushion is thrown downward with a non zero speed, what is the shape of its path and why?

Q: A frictionless block of mass 0.5 kg slides down a ramp of height 0.2 m and onto a horizontal…

A: The vertical component of the net force acting on the block. given, mass(m)= 0.5 kg height(h)= 0.2 m

Q: QUESTION 1 An 8-kg block slides 150mm from rest down the 25-degree plane. The spring has a value of…

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Q: In the figure below, the two blocks are released from rest, with the 2.0 kg block at height H above…

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Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.870 m/s encounters a rough horizontal…

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Q: Problem 5. A box of mass m is sliding across a table (H = 1.5 m tall) with an initial speed of vo =…

A: Step 1: Given  Step 2: Calculation for part (a)  Step 3: Calculation for part (b)  Step 4:…

Q: A 19-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 27 N.…

A: Given Mass of the sled is m=19 kg Applied horizontal force is F=27 N Initial speed of the of the…

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: . Find the coefficient of kinetic friction between the runners of the sled and the s

A: Given that Horizontal Force, F = 23 N Mass of the body/sled , m= 20kg Initial speed of the body/sled…

Q: For a short time, the 400-kg roller-coaster car with passengers is traveling along the spiral track…

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Q: block of mass m= 5 Kg is sent sliding up a large plane inclined at 0 = 37° while a horizontal force…

A: The block of mass 5 kg is placed at a 37o inclined surface. This block is being pushed up the…

Q: The 60-kg crate is projected along the floor with an initial speed of vo = 6.8 m/s at x = 0. The…

A: First, calculate the friction force, which is the product of the mass, gravity, and the coefficient…

Q: A 9.50 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

A: GivenMass m = 9.50 kgInitial velocity u = 0 m/sForce applied F = 12.0 NAngle θ = 24.0o Coefficient…

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: Chapter 07, Problem 047 A machine carries a 7.0 kg package from an initial position of d; = (0.7 m)…

A: The work done by a body is the scalar product of the force applied and the displacement of the body.…

Q: A box is launched up a rough incline with an initial velocity, vo = 6.7 m/s, as in the figure below.…

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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: Question 7 Werk.. A constant force F= 5.0 [N] is applied at a certain angle from the horizontal on a…

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Q: A skier slides down a hill in a straight line. The hill is 60m high and the coefficient of kinetic…

A: Given. M = 70 kg a = 20° u = 0.1 h = 60m

Q: 100 kg 20° mo 90 kg 105 kg O 101 kg O 100kg

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Q: A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 30 N.…

A: Given data: mass m = 17 kg force F = 30 N speed v = 1.9 m/s displacement d = 8.6 m

Q: 14 kg object is dropped from rest on a surface inclined 31º from the horizontal and slides 10.9 m to…

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Q: A roller-coaster vehicle has a mass of 509 kg when fully loaded with passengers (see figure). 10 m…

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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: Two blocks with the same mass are released from the top of two inclined planes of the same height.…

A: let the mass = m θ1 = 30oθ2 = 60o

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: 4 A -2 4 -2 Consider the two vectors, A and B, in the figure. The x and y components of both vectors…

A: Addition of two vectors A→=axi^+ayj^+azk^ and B→=bxi^+byj^+bzk^ is given by-…

Q: A man pushing a crate of mass m = 92.0 kg at a speed of v=0.870 m/s encounters a rough horizontal…

A: Mass of the crate (m)=92 kgInitial speed (vi)=0.870 m/sLength of surface (L)=0.65 mCoefficient of…

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: We are now going to consider the transport of the grains of pollen in the air. A grain of pollen…

A: why the grain of pollen will reach a limiting speed in its free fall.

Q: puck’s

A: The work-energy theorem can be applied here, work done=change in kinetic energy Work done by a body…

Q: A stone with a weight of 4.89 N is launched vertically from the ground level with an initial speed…

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Q: Thanks!

A: Given: Initial speed (u) = 3.0 m/s. Inclination angle of track (θ) = 16.0 Combined mass of monkey…

Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.865 m/s encounters a rough horizontal…

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Q: A 4905 N H = 250 m B 4204 N Vo C 3924 N D 3679 N A 1700 kg car decending a hill of height 250 m with…

A: Given, m=1700 kgH=250mv0=45 m/sd=1600 m

Q: A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m high rise as shown. Find her…

A: At the top, the maximum speed must be determined. We are aware of the skier's weight, which is -60…

Q: A packing crate with mass 80.0 kg is at rest on a horizontal, frictionless surface. At t = 0 a net…

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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 skier starts from rest at the top of a hill that is inclined at 10.9° with respect to the…

A: Given Angle of the incline θ = 10.9o Length of the slope L = 220 m Coefficient of friction μk =…

Q: A 2.0- kg box is moving at constant speed of 2.0m/s on a frictionless horizontal floor. You apply a…

A: Given Mass of a bix = 2.0 kg  box is moving at constant speed = 2.0m/s frictionless horizontal floor…

Q: Bank robbers have pushed a 1000 kg safe to a third-story floor-toceiling window. They plan to break…

A: Let M denotes the mass of the safe, m denotes the mass of the furniture, f denotes the friction…

Q: A 0.087 kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow…

A: Given data: Mass of arrow (m) = 0.087 kg Average force (F) = 80 N Distance (d) = 0.90 m Speed of…

Q: A skier starts from rest at the top of a hill that is inclined at 11.0° with respect to the…

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Q: A 13 gg plastic ball is thrown horizontally at 15 m/sm/s from xx = 0 mm. It experiences an…

A: Given that, Drag force, Fx = - 2×10-3 N/m Mass of the ball m = 13 g                                =…

Q: Find the magnitude and direction of the net force on the crate while it is on the rough surface.

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Q: A 20-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 28 N.…

A:

Q: A box is launched up a rough incline with an initial velocity, vo = 6.3 m/s, as in the figure below.…

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.