Identical twins Ann and Betty set out to climb a mountain. Ann chooses a slope that averages 30° above the horizontal and Betty chooses a slope that averages 40°. Compare the amounts of work the twins do.

Q: 2. In a gravity escape system (GES), an enclosed lifeboat on a large ship is deployed by letting it…

A: Given data, Height h=2.5 m Mass m=4970 kg

Q: A block of wood is compressed 2.00 nm when inward forces of magnitude 141 N are applied to it on two…

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Q: If the total mass of the sled and the girl is 25 kg in the coefficient of kinetic friction between…

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Q: A robot is pushing a 65kg box of watermelons up a ramp to be used in a math problem. The ramp is at…

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Q: A horizontal force of 220 N is applied to move a 46 kg television set across a 12 m level surface.…

A: Work can be determined with the equation: Work = Force × Distance. The SI unit for work is the joule…

Q: A cart with a box of books is pulled 10m horizontally with a constant force of 150 N acting at 40°…

A: Solution:-Given that

Q: Someone lifts 120g of snowballs off the ground, raises them to a height of 100 cm, and then throws…

A: m=120 g = 0.120 kg h=100 cm = 1 m  v=10 m/s g=10 m/s^2   Work done = energy

Q: person pulls a bucket of water up from a well with a rope. Assume the initial and final speeds of…

A: Introduction: Work is the product of the component of the force in the direction of the displacement…

Q: In the diagram below, a box is subjected to two forces and is displaced horizontally by a distance…

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Q: Question: A person lifts a 1.75kg mass in the vertical direction through a distance of 1.35 meters.…

A: Given value--- mass = 1.75 kg. vertical distance= 1.35 m. We have to find--- Calculate the amount…

Q: A girl with a heavy backpack wants to climb to the top of a hill. The path straight up the hill is…

A: Write the expression of work-done during climbing to the hill. W=F·s Here, F is force and s is…

Q: 20. A 0.58 kg box is pulled with 70 N of force at an angle of 150 above the horizontal across a flat…

A: Given: m = 0.58 kg, F = 70 N, θ = 15°, s = 17 m

Q: Both blocks in the diagram below are in static equilibrium. The 7 kg hanging mass is fully submerged…

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Q: For each of the following scenarios, is the total work done on the object positive, negative, or…

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Q: Darth Vader uses the Force (fitting name for it in this example) to lift an enemy rebel into the…

A: Any force acting on an object displaces the object by some distance. So this applied force does some…

Q: A 8.0kg box slides down a 2.0m long surface that is inclined at 53° below the horizontal. The…

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Q: Frank pushes a load of shingles up a ramp that is at an angle of 25 degrees to the ground. He exerts…

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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: box across the ground for 3m with a force of 82N an angle of 72° to the direction of travel. Who is…

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Q: In the figure (0=52°, H1=0.23). Assuming a mass equal 0.2 kg starts from rest on the incline plane…

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Q: نقطة واحدة The block is being pulled along the ground by a 50 N force directed 60 degree above the…

A: Given: The applied force is 50 N. The displacement of the object is 2 m. The angle between…

Q: A middle school kid is pushing a lawn mower with 60 N of force at an angle 31 degrees below the…

A: Here, applied force(F) = 60 N displacement(S) = 400 m The angle(θ) between the applied force and…

Q: Joel and Yessenia push on a car that has stalled, trying unsuccessfully to get it to move. Yessenia…

A: Given thatJoel and Yessenia were unsuccessful in moving the car.as work done…

Q: If a man lifts a 20.0‐kg bucket from a well and does 6.00 kJ of work, how deep is the well? Assume…

A: Mass of bucket (m) = 20.0 kg Work done ( W ) = 6.00 kJ

Q: A man is pushing a lawnmower as shown in the diagram above with an angle of 0-30 below the…

A: Given data:  Angle (θ) = 30°,below the horizontal  Force (F) = 100 N Work done (W) = 1000 J…

Q: A 36 kilogram model rocket experiences an upward, position-dependent force due to its engine. The…

A: Given data The mass of the rocket is m = 36 kg. The force expression is written as F = x2 + 450 The…

Q: A man lifts a 12 kg bucket of water at constant speed, from the bottom of a hole that is 17m deep.…

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Q: In the previous Question (Q4), assume the coefficient of kinetic friction between the crate and the…

A: The objective of the question is to calculate the work done by the normal force and the friction…

Q: A book is moved on a rough wooden table from position A to position B. What is TRUE about the work…

A: Since, the work done by friction depends on the path taken and also the nature of work done by…

Q: A weight lifter lifts a 380 N set of weights from ground level to a position over his head, a…

A: Given data: The amount of weight lifted is L=380 N. The height of weight lift is h=2.10 m.   The…

Q: A middle school kid is pushing a lawn mower with 46 N of force at an angle 31 degrees below the…

A: Force = F = 46 N Displacement = S = 350 m The diagram is given below:

Q: A child pulls a wagon on level ground a distance of 4.24 mm  using a rope connected to the front of…

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Q: Find approximate values for the work by dividing the area under the force curve into rectangles of…

A: Given values:- Width of the rectangle,(∆x)=2 m -----(1) F=ax2 ------(2) [Here x is in meter] a=5…

Q: A box slides down a plank of length d that makes an angle of θ with the horizontal as shown. μk is…

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Q: Early in October, you go to a pumpkin patch to select your Halloween pumpkin. You lift the 3-2kg…

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Q: A 18.0-N weight slides down a rough inclined plane which makes an angle of 29.0° with the…

A: Friction force chapter problem.

Q: A girl on skateboard (total mass of 50.6 kg) is moving at 14 m/s at the bottom of a long ramp. The…

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Q: A crate is placed at the upper end of the 2.0 m long ramp that is inclined at 20° to the horizontal…

A: Given data: The length of ramp is L=2 m. The inclination of ramp is θ=20°. The mass of crate is…

Q: X A 10 Kg object is raised to a height of 2m in 5s. What is the rate of work done? * 10 『- 10%メ 10…

A: Given, mass of an object, m = 10 kg height above the ground, h = 2 m time taken, t = 5 s

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

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Q: A worker pushing a 35.0-kg wooden crate at a constant speed for 13.6 m along a wood floor does 400 J…

A: Work done by moving a body by a distance (s) is given by W = F.s, where F is the force applied. If a…