4. A 52.9 kg congress woman rides up the escalator in the metro station at Woodley Park. The escalator does 16,900 J of work as the woman travels a distance of 57.4 m. Determine the elevation (incline) angle of the escalator. FA

Q: To push a 28.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A: Given data-                    Mass of crate m=28.0 kg                    Force exerts by worker=219…

Q: Maria, May, and Jokoy are pushing a table with a constant 446 N force. Maria is pushing the table…

A: The magnitude of forces F=446 N The displacement of the table x=9 m along east. The workdone by…

Q: The force F =(4.58N)i +(5.31N)j acts on a particle as it moves along the following path.  1. First…

A:

Q: Using the total mass of the elevator and the woman, find the gravitational potential energy at the…

A:

Q: A shopper pushes a grocery cart 22.0 m at constant speed on level ground, against a 31.0 N…

A: a)the work done by the fricional force is

Q: A mechanic pushes a 2280 kg car from rest to a speed of v, doing 5252 J of work in the process.…

A:

Q: A 63kg skier coasts down a 30◦ slope. At the top of the slope her speed is 3.6m/s. She accelerates…

A:

Q: A college student earning some summer money pushes a lawn mower on a level lawn with a constant…

A: Solution:-

Q: exercise in her daily routine, Tara decides to walk up the five flights of stairs to her car instead…

A:

Q: A cable exerts a constant upward tension of magnitude 2.54 × 10“ N on a 2.40 x 10° kg elevator as it…

A: Work done=FdcosθF is tension force=2.54×104 Nd is vertical distance=3.10 mθ is angle between force…

Q: An airplane in straight and level flight travels a distance of 3.44 x 10³ m. Its vector is directed…

A: Given value--- An airplane in straight and level flight travels a distance of 3.44 x 103 m. Its…

Q: To push a 35 kg crate up a frictionless incline, angled at 18° to the horizontal, a worker exerts a…

A: Given Mass = 35 kg Angle = 18° Force = 127.2 N Crate slide distance = 1.5 m

Q: A person pulls a crate 43.9 meters along a horizontal floor by a constant force 103.9 N, which acts…

A: Given: distance travelled by crate d = 43.9 m Force applied by person  F = 103.9 N along 37.9o…

Q: Consider a system of a cliff diver and the Earth. The gravitational potential energy of the system…

A: Given that gravitational potential energy of the system decreases by 26,000 J so that PE=26000 J…

Q: An airline flight attendant rolls a suitcase through the airport lobby, as shown in the figure. If…

A: Write the expression for the work done. W=F→⋅d→W=Fdcosθ

Q: Juan, Jose, and Jokoy are pushing a table with a constant 579 N force. Juan is pushing the table…

A: Analyze the diagram of the given system. Given that: The expression for the work done is written…

Q: You push a file cabinet up a frictionless ramp tilted at 10.°with horizontal. The file cabinet has a…

A:

Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.80 x 10^6 N, one 14°…

A: Given data The magnitude of the constant force is F = 1.80 x 106 N The angle at which the force is…

Q: A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling…

A:

Q: Points A and B are 5.0 m apart.  The force indicated by the arrow acts on the block with a magnitude…

A: Here work done by the applied force is W= Force applied×displacement=2×5=10 Joule Work done by the…

Q: A 11.7 kg sled starts from rest at the top of a hill that is inclined at 29.3 degrees to the…

A: Given data as per question mass of sled =  11.7kg angle made with horizontal   =  29.3 distance  =…

Q: To push a 29.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A:

Q: person pulls a crate 49.6 meters along a horizontal floor by a constant force 113.7 N, which acts at…

A:

Q: helicopter lifts a 80 kg astronaut 17 m vertic (a) How much work is done on the astr (b) How much…

A: GivenMass of Astronaut, m=80 kgDistansed moved vertically, d=17 mAcceleration of Astronaut, a=g10

Q: A person pulls a toboggan for a distance of 29.6 m along the snow with a rope directed 22.1 ° above…

A:

Q: A physics student shoves a 5-kg block from the bottom of a frictionless 30.0° inclined plane. The…

A: Given: Mass of block, m=5 kg Angle made with horizontal, θ=30° Work, W=4 J Diagram:   Formula:…

Q: To push a 29.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A: The energy of the crate at the bottom of the incline, just before the worker starts applying force=0…

Q: A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional…

A: Write the given values with the suitable variables. m=78 kgh=11.4 mu=0 m/sWf=-6×103 J Here, m, h, u,…

Q: To push a 27.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A:

Q: A 51.6 kg sled coasts down a hill, starting from rest. The hill is inclined at an angle of 17.4…

A: Recall W=FdcosθHere angle θ between normal force and displacement is 900 so cos90=0

Q: To push a 25.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A:

Q: A bicyclist rides 3.91 km due east, while the resistive force from the air has a magnitude of 8.33 N…

A: Given that: The distance covered by the rider is 3.91 km due to the east and 3.91 km due to the west…

Q: A 941 kg elevator carries passengers with combined mass of 455 kg as it ascends at constant speed of…

A:

Q: A man cleaning his apartment pushes a vacuum cleaner with a force of magnitude 35.8 N. The force…

A: The work done here can be given by W=Fd cosθ