A girl with a heavy backpack wants to climb to the top of a hill. The path straight up the hill is 100. m long.  Rather than going straight up she chooses a zigzag path 200. m long. The work she does on the backpack is ___ the work she does on the backpack going up in a straight line.

Q: A block of mass, m, is pulled over a distance, d, by an applied force, F, along a smooth horizontal…

A: Applied force = F Displacement = d Here force and displacement is in sane direction . therefore…

Q: A crane lifts a 650-kg beam vertically upward 23.0 m and then swings it horizontally a distance of…

A: Given: The mass of the beam is 650 kg. The vertical displacement of the beam is 23 m. The horizontal…

Q: An object goes down a curved ramp. The only forces acting on the object are the force of gravity and…

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Q: joel is performing a leg curl. To raise the weight, he exerts a vertical force of 1500 N of force to…

A:

Q: HW Ch 7 1.Two different forces F1 and F2 acts on an object as shown in Fig.F1=6i+7j and…

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Q: traveler pulls on 15-kg carry-on luggage with a force F = 20 N angled at 40o above the horizontal…

A:

Q: 3. A constant force F = (3, J3) moves an object along a straight line from the point (0,1) to the…

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Q: Johnny used his super muscle power to pull a box initially at rest, up an inclined plane. The…

A: angle of incline (θ) = 35oforce (F) = 250 N mass (m) = 25 kg coefficient of kinetic friction =…

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: Fabiana exerts a constant downward force of 140 N140 N on her bicycle pedal with each downward…

A: Given: Downward force =140 N length of bike's pedal crank arm = 175 mm   To calculate : the work…

Q: A 82.5-kg man pushes a crate 4.5 m up along a ramp that makes an angle of 19.5° with the horizontal.…

A: The objective of the question is to calculate the work done by the man to move the crate and himself…

Q: A 140-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 16.4°…

A:

Q: Skylar pulls a 6.00-kg crate across a horizontal floor for a distance of 2.6 m as shown. The tension…

A: Given data:  Frictional force (F) = 19 N Distance (d) = 2.6 m Angle between frictional force and and…

Q: thou a displa Is pusned norizontal Newtons. Non-conservative forces (friction) remove 14 Joule stem.…

A: Given values:- Displacement,(d)=3 m -----(1) Force,(F)=89 N -----(2) Non-conservative forces work…

Q: Starting from rest, a 5.40-kg block slides 2.60 m down a rough 30.0° incline. The coefficient of…

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Q: A force of 14 lb is required to hold a spring stretched 4 in. beyond its natural length. How much…

A: force = 14 lb stretch (d) = 4 in

Q: In the figure, a constant external force P= 160 N is applied to a 20.0-kg box, which is on a rough…

A:

Q: A dog pulls a 7.3 kg container full of treats a distance of 10 m away from home with a constant…

A:

Q: An archer pulls a bowstring back 0.500 m by exerting a force that increases uniformly from zero to…

A: It is given that, x=0.500 mF=250 N

Q: 3. A sled of mass 70 kg starts from rest and slides down a 10° incline 70 m long. It then travels…

A: The work done by the system on the sled is W=700.76 J

Q: A child is pulling a little red wagon along the side walk. She pulls with a 34 N of force at an…

A: Answer:-  Given  Force (F) = 34 N  Angle (A) = 28o Distance (S) = 23 m  We know that  Work done (W)…

Q: The figure below shows a person lifting a box with a mass of 18.9 kg a height of 1.4 m and moving it…

A: First, the person lifts the box up to a height of 1.4 mAnd then moves the box to a distance of 5 m…

Q: A 2.0 kg block is initially held at rest at position A. The curved portion of the curve path AB is…

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Q: 100 feet and weighing A chain, with length h 3 pounds per foot, hangs over the side of a building.…

A: Given:  Total length of the chain = 100 ft Weight of the chain = 3 pound per feet

Q: A 5.0 kg object is moving forward with an applied force of 10.0 N right, displacing 5.0 m right. The…

A: Total work done due to force of gravity on the object is ZERO. NO WORK IS DONE BY FORCE OF GRAVITY…

Q: The graph shows the xx component of a force that acts on an object that moves on the xx axis. The…

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Q: One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 217 N with its beakas it…

A:

Q: Another example of moving a couch at a constant speed, this person pushes down at an angle of 27.10…

A: Mass of object is m=25.7 kg Object moving at constant speed. The person pushes down the object at an…

Q: QUESTION 6 1. Claude applies a force to a crate to move it across the floor. The force is in the…

A: SOlution: given that F =0.6X3

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: Work done can be defined as the change in kinetic energy. Now for the first part of problem, we know…

Q: What is the work done by gravity on the cart from its initial position to when it reaches the bottom…

A: Given: What is the work done by gravity on the cart from its initial position to when it reaches the…

Q: kateboarder with mass ms = 46 kg is standing at the top of a ram

A: Given: Mass of skateboarder is ms=46kg hy=3.3m At the top of a ramp, initial speed of skateboarded…