A sled is initially given a shove up a frictionless 20.0 incline. It reaches a maximum vertical height 1.10 m higher than where it started at the bottom. Part A What was its initial speed? Express your answer to three significant figures and include the appropriate units.

Q: A 20.0-kg crate sits at rest at the bottom of a 11.5 m-long ramp that is inclined at 35 ° above the…

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Q: A 2.85 kg block on a horizontal floor is attached to a horizontal spring that is initially…

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Q: IP To clean a floor, a janitor pushes on a mop handle with a force of 69.1 N • Part A If the mop…

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Q: ce on a 1700-kg coaster train? Part B How much work is done by friction during the time the…

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Q: Calculate the work done on the suitcase by F. Express your answer with the appropriate units. A…

A: As per guidelines only 3 subparts are solved here.

Q: A 60 kg sprinter, starting from rest, runs 46 m in 7.0 s at constant acceleration. ▼ Part A What is…

A: The mass of the sprinter is 60 kg.The displacement of the object is 46 m in the first 7s.The initial…

Q: A 1400-NN crate rests on the floor.     Part A How much work is required to move it at constant…

A: Write the given values of this problem. frictional force(f)=310 NDistance(d)=5 mm or 5×10-3 m

Q: A 1500 kg elevator, suspended by a single cable with tension 16.0 kN, is measured to be moving…

A: Mass of elevator Tension of cable Upward speed We need to calculate, (D) Elevator's kinetic…

Q: A 1500-kg  car traveling at 6.0 m/s  runs into the side of an underpass. The concrete wall is not…

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Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

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Q: Part B What is the work W₁ done on the box by the normal force? Express your answers in joules to…

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Q: A horizontal rope with 15 N tension drags a 25 kg box 4.0 m to the left across a horizontal surface.…

A: (A)   Calculate the work done by the tension, as below. The tension in the rope and the displacement…

Q: Sam, whose mass is 66 kg, straps on his skis and starts down a 52 m - high, 20° frictionless slope.…

A: Draw the free-body diagram of the mass.

Q: A particle moving along the x-axis is in a system with potential energy U = 11/x J, where x is in m.…

A: Given data The expression for the potential energy is given as U=11x J. The value of x is given as…

Q: A 60.5 kg skier is moving at 6.60 m/s on a frictionless, horizontal snow-covered plateau when she…

A: The mass, m=60.5 kg   The initial speed, vi=6.60 m/s   The distance, L=4.00 m   The coefficient of…

Q: A 1500 kg elevator, suspended by a single cable with tension 16.0 kN, is measured to be moving…

A: The objective of the question is to calculate the work done by gravity on the elevator as it rises…

Q: A 1400-N crate rests on the floor.     Part A How much work is required to move it at constant speed…

A: Given  Distance travelled is d=5.0  m Frictional force is f=310 N Acceleration of the crate is a=0…

Q: An elevator has mass 640 kg, not including passengers. The elevator is designed to ascend, at…

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Q: You are asked to help design a new type loop-the-loop ride. Instead of rolling down a long hill to…

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Q: A sprinter accelerates from rest. Part A Is the work done on the sprinter positive, negative, or…

A: If a sprinter accelerates from rest, then the work done on the sprinter is positive. Because the…

Q: ▼ Part A with a force of 1.2 mN. W = What is the work done by the muscle fiber as it contracts to a…

A: Given F = 1.2 mN   = 1.2 × 10-3 N Muscle fiber contracts from 2 cm to 1.6 cm length∆ L = 2 cm - 1.6…

Q: A block of mass 15.0 kg slides down a ramp inclined at 28.0° above the horizontal. As it slides, a…

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Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.30x106 N, one at an…

A: The force exerted by each tug is 1.30×106 N. One force is at 19° angle with the west of the north.…

Q: block of ice with mass 2.00 kg slides 0.810 m down an inclined plane that slopes downward at an…

A: mass of block of ice (m) = 2 kg distance (d) = 0.810 m Angle of incline (θ) = 31o

Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

A: According to the law of conservation of energy the total initial energy is equal to the total final…

Q: Part A On a second run, the sled starts with a speed of 1.50 m/s at the top. What is the speed of…

A: Work done by gravity on sled is given by  W= mgh  Where m is mass g is acceleration due to gravity…

Q: a skater moving at 3.0 m/s encounters a rough patch that reduces her speed by 45% due to a friction…

A: Initial speed of the person is u=3 m/s Final speed on rough patch is v=45% of u Friction force is…

Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.00x10° N, one at an…

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Q: Part A A system in which only one particle can move has the potential energy shown in (Figure 1).…

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Q: How much work is done by the normal force?

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Q: You are unloading a refrigerator from a delivery van. The ramp on the van is 5.0 m long, and its top…

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Q: Hooke's law describes an ideal spring. Many real springs are better described by the restoring force…

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Q: Part A Your physics book is resting in front of you on a horizontal table in the campus library. You…

A: Consider the given data as below. The displacement of friend north side, s1=0.400 m The displacement…

Q: The figure shows a cord attached to a cart that can slide along a frictionless horizontal rail…

A: Change in kinetic energy = ?

Q: The maximum height a typical human can jump from a crouched start is about 55.0 cmcm .     Part A By…

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Q: A 1500 kg car has a maximum power output of 140 hp. Part A How steep a hill can it climb at a…

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Q: A 1000-kg sports car accelerates from rest to 95 km/h in 7.0 s .

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Q: A 55.0 kg ice skater is gliding along the ice, heading due north at 4.30 m/s. The ice has a small…

A: Mass of the person is Initial speed is  directed towards north direction.The coefficient of kinetic…

Q: A horizontal spring with spring constant 250 N/m is compressed by 15 cm and then used to launch a…

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Q: block of weight w = 25.0 N sits on a frictionless inclined plane, which makes an angle θ = 30.0 ∘…

A: work done = FS Cosθ

Q: A 53.0 kg ice skater is gliding along the ice, heading due north at 4.40 m/s. The ice has a small…

A: m=50kg

Q: A 1400-kg elevator is lifted at a constant speed of 1.5 m/s through a height of 25 m. • Part A How…

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Q: Part A On an essentially frictionless, horizontal ice rink, a skater moving at 5.0 m/s encounters a…

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Q: The driver of an 2000 kg car (including passengers) traveling at 30.0 m/s slams on the brakes,…

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Q: A 3.50 kg block is pulled up a frictionless inclined plane by a 60.ON force that is parallel to the…

A: Given: The mass of the object is 3.5 kg. The applied force is 60 N along the plane. The magnitude of…

Q: A clever engineer designs a "sprong" that obeys the force law F₂ = -q(x-x)³, where is the…

A: According to question we need solve three sub part.

Q: What is the minimum work needed to push a 980-kg car 350 m up along a 8.0° incline? Ignore friction.…

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Q: What is the minimum work needed to push a 900-kg car 860 m up along a 9.5° incline? Ignore friction.

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