A skier traveling 12.1m/s reaches the foot of a steady upward 12.43318 incline and glides 25.04093m up along this slope before coming to rest. What was the average coefficient of friction?

Q: How do you relate power, time, and wo

A: The power is the rate of change of energy. The unit of power is Watt.

Q: A 5-kg object is pushed across a level surface with a force of 12 N for a distance of 6 m. How much…

A: Given that-Mass, m= 5 kgForce, F= 12 NDistance, d= 6 mWork done by force, W.D=F→.d→…

Q: 1) Define the unit vector? What is the unit vector of the general vector: A = %3D azî + a,j + a,k…

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Q: Can you please answer this question and show all of the steps

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Q: Work is a _______ a) Scalar quantity b) Vector quantity c) Foreign quantity d) Magnitude less…

A: To answer: Work is a _______

Q: Describe using words, a sketch, and a force diagram two situations whose mathematical description is…

A: The given equation is, ⇒ 700 N - (30 kg)(9.8 Nkg) = (30kg) v212 m The other form in which we can…

Q: Pancho uses his hand to push a block up a ramp, see figure. Match the letters with the type of work…

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Q: Which of the following are true: a) On Earth the atmosphere contains the largest carbon reservoir…

A: (a) On Earth the atmosphere contains the largest carbon reservoir above the crust. False. Carbon is…

Q: A car engine exerts a 100O N force on the car for 250 m. The trip takes 20 seconds. 1.) How much…

A: Given, Force exerts by engine, F = 1000 Ndistance traveled, d = 250 mtime taken, t = 20 seconds.

Q: Two blank potential energy diagrams appear below. Beneath each diagram are objects to place in the…

A: Introduction: Potential energy is defined as the energy stored in an object due to the position of…

Q: 4) Three sleds are connected together with ropes, as shown. Sled C is pulled with a force of 190N.…

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Q: Figure 1: 140 m -120 m- 95 m 80. m D.

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Q: 6. A 200-lb cable is 100 ft long and hangs vertically from the top of a tall building. How much work…

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Q: Label the image with the correct answers. : Most potential energy :: least potential energy :…

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Q: An object of mass 2.00 kg starts at rest from the top of a rough inclined plane of height, h, 20.0 m…

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Q: Solve the work done (J) by a small spacecraft as it moves from 0 to 70 m. Determine and illustrate…

A: From the graph, 1 div=108=1.25 div From 0 to 10 m.  The area of a right-angled triangle=12bh b=10…

Q: Content To solve these problems you will need to use the concept of work. Remember the following…

A: Given that, The mass of the cooler is m = 3kg. The displacement of the cooler is s = 1.7m. The…

Q: Eight and one-half foot-pounds of work is required to compress a spring 6 inches from its natural…

A: Write the expression for the work to determine the force constant. W=12kx2(8+12) ft⋅lb=12k(6 in×1…

Q: A forklift does 1150 J of work to lift a crate straight up using a force of 500 N. How high does the…

A: Work done by forklift to lift a crate, W = 1150 J  Force acting , F = 500 N  Let crane lift the…

Q: A ball is rolling across the floor at a constant velocity. What is the value of the change in its…

A: As part of our policy, we are answering only 1 st question. Please repost the other questions.

Q: Joanne drives her car with a mass of 1500 kg at a speed of 25 m/s. What is the road friction needed…

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Q: 6. How much work is done against gravity to move an 800 kg weather monitor 300 km into the air? (rε…

A: mass m = 800 Kg let height h = 300 km Radius R = 6.38 x 106 m mass of earth M = 5.98 x 1024 Kg

Q: Describe the Law of Conservation of Energy. Provide equations and examples to support your point

A: Law of Conservation of Energy states that  energy neither be created nor destroyed but only…

Q: What is the work done against gravity in lifting a 65-kg object through a distance of 12 m? Show…

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Q: Define potential energy and develop mathematical form for potential energy due to gravity.

A: Potential energy, stored energy that depends upon the relative position of various parts of a…

Q: 3) The particle of mass m is placed on the wedge as it is depicted in the picture below. At what…

A: Hey dear I have solved this .have a look

Q: Which of following shown a example of potential energy

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Q: What is the speed of a bicycle that travels 3000 ft in 4 minutes? Give your answer in mph.

A: GIVEN            Distance travels = 3000 ft            time elapsed = 4 minutes

Q: es 32200 J to

A: Given: Power of over is 115 W Heat for melting is 32200 J

Q: A body does 24 Joules of work in 4 seconds . What is it's power ?

A: Given data :   Work done   =   W     Time Tekken   =   t        To find :             Power

Q: Solve the work done if a force of 28.9 N causes the box to move a horizontal distance of 5.01m

A: Given,  Force = 28.9 N Distance = 5.01m We need to calculate,  Work done=?

Q: A dog runs with a speed of 4 m/s for 20 seconds. How much force did the dog run with if it performed…

A: Given Data : The speed of the dog is given as v=4 ms The time of travel is given as t = 20s. The…

Q: Josh does 750 J of work pushing a desk 10 meters across the classroom. How much force did he use to…

A: Given Data: The work done by Josh to push the desk is: W=750 J The distance covered by the desk is:…

Q: What force is needed to move a barrel 45 meters if 3600 joules of work are accomplished? Solve the…

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Q: 55,000J of work is done to move a rock 25m. How much force was applied

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Q: A child of mass 25 kg is sledding on the slope shown. At position A the sled is moving at 12 m/s.…

A: SOlution:

Q: A 14, 675 Watt crane is lifting a load with constant speed of 0.1 m/s . What is the mass of the…

A: If a constant force (F) moves an object at constant velocity (v), then the power is, P = F×v

Q: What does the area under the curve of a work vs time graph represent?

A: The area under the curve of work vs time graph represents no such physical quantities. The area…

Q: Draw or illustrate a triple Venn diagram showing Power, Energy and Force

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Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.