a ski lift pulls a skier up a frictionless slope with a force of 321N the ski lift accelerates from 1.49m/s to 12.5m/s with an acceleration of 0.596m/s squared. over a duration of the ride to the top of the hill, how much work has been done?

Q: A 1000kg car is travelling at 15m/s on the motorway. Calculate the work done (change in energy) when…

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Q: work

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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 child and sled with a combined mass of 28.6 kg slide down a frictionless hill, starting at the…

A: Given Data Combined mass of the child and the sled is m=28.6 kg Initial speed of the sled is vi=0…

Q: A force of 35 N is applied to a 15.3 kg object. The object moves 3.69 m in the direction of the…

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Q: A 0.40 kg ball is launched at a speed of 22.8 m/s from a 22 m cliff. What is its kinetic energy the…

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Q: A 2200 kg car moving at 31 m/s comes to a complete stop.  What is the work done by the breaks of the…

A: Using work-energy theorem, the expression for find work done by the breaks of the car is…

Q: A force of 30 N acts on a body and moves it through a distance of 5 m in the direction of force.…

A: Given data: Force (F) = 30 N Distance (d) = 5 m Angle between displacement and force (θ) = 0°…

Q: A 67.1 kg runner has a speed of 4.30m / s at one instant during a long-distance event. what is the…

A: Given data:  Mass (m) = 67.1 kg Initial velocity (vi) = 4.30 m/s Final velocity (Vf) = 8.60 m/s…

Q: A 590 kg elevator acceleratés upward at 1.2 m/s for the first 19 m of its motion. Part A How much…

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Q: A boy pulls a 500.-N cart using a rope with a constant 200.-N tension directed 30.0o above the…

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Q: A man applies a force of 700 N to a crate and pushes it through a distance of 200 cm. Calculate the…

A: Given: Applied force F = 700 N, Displacement s = 200 cm = 2 m.  Required : Amount of work done (W)…

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 motorist runs out of gas on a level road 190m from a gas station . The driver pushes the 1,220 kg…

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Q: A motorist runs out of gas on a level road 150 m from a gas station. The driver pushes the 1,120 kg…

A: Given: Distance traveled, d=150 m Mass, m=1120 kg Force, F=180 N Formula: Work=Force×distance W=F×d

Q: A horse is pulling a sled with 20O N of horizontal force against an average of 100 N of friction for…

A: Given: The applied force by the horse is 200 N. The frictional force is 100 N. The displacement of…

Q: clown pulls a 100-n crate up a frictionless 30° slope 5m high , assuming that the crate moves at a…

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Q: A 2,000-kg car travelling at 25.0 m/s skids to halt on level ground. how much work was done by…

A: Apply the energy conservation equation.

Q: A force of 20 N acts on a body and moves it through a distance of 5 m in the direction of force.…

A: Given data: Force (F) = 20 N Distance (d) = 5 m Angle between force and displacement (θ) = 0°…

Q: A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let…

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Q: los ) 12. A rope is used to pull a metal box 15.0 meters across the floor. The rope is held at an…

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Q: A sled is dragged across 55m snow with a force of 43N being exerted on the string, which is at an…

A: We have a sled on which a force of F=43 N is exerted at an angle of θ=53o from the horizontal due to…

Q: A student with a 2.5-kg book bag on her way to class climbs two flights of stairs (a 20-m vertical…

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Q: A driver climbs up the stairs to the diving tower. The work he does climbing the stairs is?

A: When someone is climbing he needs to do work against gravity. The work is defined as the dot product…

Q: using a force of 50.0N you can you push a cart 10.0 m across a school. how much work did you did?

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Q: A pitcher performs 100.0J of work on a baseball (initially at rest) with a mass of 0.30kg. What is…

A: Given:               Mass of the body, m = 0.30 kg             Work done on the baseball, W = 100.0…

Q: A 300-kg roller coaster car starts 48m above the ground and is 5m above the ground at the end of the…

A: Given, mass of rollar coaster (m) = 300 kg  Initial height (H) = 48 m  Final height (h) = 5 m

Q: A 35 kg box is dragged by a rope a distance of 3 m from rest to a speed of 2m/s along a horizontal…

A: Consider the initial speed of box be u, the acceleration of the box be a, the final speed of the box…

Q: Suppose a worker lifts a box with constant speed, v. Calculate the total work done on the box while…

A: Given: The constant speed of the box is v.

Q: A boy pushes a book by applying a force of 40 N. Find the work done by this force as the book is…

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Q: a toy tow truck pulls a 6kg hot wheel a distance of 980m. the tow truck applies a force of 24N at 30…

A: Mass of hot wheel (m)= 6kg Force applied (F)= 24 N Angle between force applied and displacement  (A)…

Q: A 0.40 kg ball is launched at a speed of 18.4 m/s from a 22 m cliff. What is its kinetic energy the…

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Q: A 1200 kg car is moving at 30 m/s and slows down to 20 m/s. Find the work done on the car.

A: From work-energy theorem the work done on/by an object is given by the change in its kinetic energy.…

Q: Richardson pulls a toy 3.0 m across the floor by a string, applying a force of 0.50 N. During the…

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Q: A constant 40-N force pushes a small ball in the direction of the force over a distance of 900 cm.…

A: Given data The magnitude of the force is F = 40 N The distance moved by the ball in the direction of…

Q: A force of 50 N acts on a body and moves it through a distance of 5 m in the direction of force.…

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Q: A car is moving along a road at 25.0 m/s with an engine that exerts a force of 2,475.0 N on the car…

A: Velocity of car,v=25 m/sForce exerted,F=2475 N

Q: A young man exerted a force of 9,000 newtons on a 1200 kg stalled car but was unable to move it. How…

A: Applied force by the man F = 9000 N Mass of the car is m = 1200 kg

Q: A rope is used to pull a metal box 11.3meters across the floor. The rope is held at an angle of…

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Q: Spiderman uses his spider webs to save a runaway train moving about 60 km/h. His web stretches a few…

A: Initial velocity, u = 60 km/hr =60×5/18 =  16.667 m/s Final velocity, v = 0 Mass, m = 104 kg = 10000…

Q: A man pulls a 100 N box using a rope oriented at an angle of 30˚ with the horizontal force on a…

A: Given data: Force exerted by the man, F=100 N Angle from the horizontal, θ=30° Friction force on the…

Q: A motorist runs out of gas on a level road 170 m from a gas station. The driver pushes the 1,140 kg…

A: Given data:  Displacement (d) = 170 m Mass (m) = 1,140 kg Force (F) = 190 N Required:  The work done…

Q: A constant 20-N force pushes a small ball in the direction of the force over a distance of 5.0 m.…

A: Force, F = 20 N  distance, d = 5 m

Q: ..A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let…

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Q: A +24 N force is applied to an object that moves 10 m in the same direction during the time that the…

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Q: A medieval baker is disgusted by a rat infestation. In desperation (and apparently having a modest…

A: Given: The initial velocity of the rat is 25 m/s. The final velocity of the object is 0 m/s ( at…

Q: A 50.0 kg cyclist accelerates from 3.0 m/s to 10.0 /s. Determine how much work the cyclist did.

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Q: A 90kg runner is moving at a constant velocity of 12 m/s. Calculate the kinetic energy?

A: The expression for kinetic energy is, K=12mv2