A student who weighs 552 N climbs a stairway (vertical height of 3.5 m) in 20 s. (a) How much work is done? (b) What is the power output of the student?

Q: QUESTION: A 75 kg carpenter ascends a 7.0 m vertical ladder to a house's flat roof. He then travels…

A: Since we only answer up to 3 subparts so we will answer first 3. Please resubmit the question by…

Q: A 42 N horizontal force is applied to a 5.5 kg box. The box moves a horizontal distance of 650 cm.…

A: Mass of box , M= 5.5 kg Force applied onto it , F=42 N Distance moved by box in the direction of…

Q: A shopper in a supermarket pushes a cart with a force of 45 N directed at an angle of 25° below the…

A: Given values: Applied force, F=45 N Angle below the horizontal, θ=25° Length of the aisle, d=45.0 m

Q: A block of mass 50 kg is pulled by a rope that makes an angle of 30 degrees with the horizontal. The…

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Q: A person pulls a toboggan for a distance of 27.2 malong the snow with a rope directed 23.4° above…

A: The work done is given by  W = F s cos A where, F is the force, s is the displacement and A is the…

Q: A 100 N box is slid on a horizontal frictionless surface by applying a 33 N force parallel to the…

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Q: A crane lifts a 395-kg steel beam vertically a distance of 41.4 m. How much work does the crane do…

A: Given: The mass of the beam is 395 kg. The vertical displacement of the beam is 41.4 m. The…

Q: A person pulls a toboggan for a distance of 29.8 m along the snow with a rope directed 28.9" above…

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Q: A crate of mass 10.0 kg is pulled up a rough 20°- incline. The pulling force is 100 N parallel to…

A: Given:mass of crate, m = 10 kgpulled up through 20° inclinationpulling force = 100 N ( parallel to…

Q: A 3.5 kg particle starts from rest at x = 0 and has a net force given by Fx(x) = 6.0 +4.0x - 3.0x²…

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Q: A girl pulls her 15-kg wagon along a flat sidewalk by applying a 10-N force at 37° to the…

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Q: A tractor tows a plane from its airport gate, doing 8.8 MJ of work. The link from the plane to the…

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Q: To pull a 50 kg crate across a horizontal frictionless floor, a worker applies a force of 210 N,…

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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…

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Q: e roof, descends another vertical 7.0-meter ladder, and returns to his starting location on the…

A: GivenMass of carpenter, m=75 kgHeight of ladder, h=7 mDistance travelled on roof, d=12 m

Q: A 40 kg crate filled with books is pushed along the floor by exerting a force of 227 N at an angle…

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Q: A helicopter lifts a 87 kg astronaut 19 m vertically from the ocean by means of a cable. The…

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Q: A 0.50-kg book slides on a horizontal table top. The kinetic friction force on the book has a…

A: The work done by the kinetic friction force is, W=Fscosθ   The mass of the book, m=0.50 kg   The…

Q: A 3.25-kg crate starting at rest slides down a rough 7.00-m-long ramp, inclined at 27.5° below the…

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Q: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

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Q: The (non-conservative) foree propelling a 1.10 x 10°-kg car up a mountain road does 7.50 x 10 J of…

A: Given: mass of car m =1.10*103 kgwork done by force W = 7.50*106 Jheight reached h = 2.20*102 m

Q: A 56.5-kg hiker starts at an elevation of 1270 m and climbs to the top of a 2660-m peak,  (a) What…

A: Given data, Mass m=56.5 kg Height h1=1270 m Height h2=2660 m

Q: A person pulls a crate 45.4 meters along a horizontal floor by a constant force 106.5 N, which acts…

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Q: A worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity by…

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Q: A person pulls a toboggan for a distance of 42.8 m along the snow with a rope directed 26.4° above…

A: GivenA person pulls a toboggan for a Distance, d=42.8 mAngle of rope above the snow, θ=26.4°Tension…

Q: Starting from rest, a 5.50-kg block slides 2.40 m down a rough 30.0° incline. The coefficient of…

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Q: A helicopter lifts a 85 kg astronaut 13 m vertically from the ocean by means of a cable. The…

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Q: Starting from rest, a 5.50-kg block slides 2.30 m down a rough 30.0° incline. The coefficient of…

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Q: A helicopter lifts a 65 kg astronaut 18 m vertically from the ocean by means of a cable. The…

A: F   to denote the upward force exerted by the cable on the astronaut. The force of the cable is…

Q: A block of mass m = 2.50 kg is pushed d = 2.40 m along a frictionless horizontal table by a constant…

A: Work done by force is,  W=F·d  =Fdcosθ When angel between force and distance is perpendicular then…

Q: A block of mass 15.0 kg is pulled up from rest on a rough incline. The pulling force F =100.0 N that…

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Q: A 4.5-kg block slides down a frictionless incline making an angle of 55.0° with the horizontal. (a)…

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Q: block of mass m=5 kg is pulled at a constant speed along a rough horizontal surface by a rope

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Q: While doing a chin-up, a man lifts his body 0.40 m.  (a) How much work must the man do per kilogram…

A: let the mass of the body be M kg. Height of the lift,h=0.40 m Acceleration,a=9.8 m/s2 (a) How much…

Q: A rope is tied to a box and used to pull the box 1.5 m along a horizontal floor. The rope makes an…

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Q: A spring with a spring constant of 18.0 N/cm has a cage attached to its free end. (a) How much work…

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Q: You go for a walk one afternoon down a level street to a park where there is a hill. If the hill is…

A: Work is defined as the amount of energy needed to overcome some force acting on the object. It is…