A train glides along the track without the assistance of any motor and with a negligible amount of friction. A work-energy bar chart shows the energy of the train-Earth system at moments one and two. Eki Egt Wext Ek2 Egz 0 y=0 (a) Draw the position of the rollercoaster on the track at moments one and two. Label each moment. (Note, there are many possible answer (b) Explain how you chose the positions at those moments in time by referring to details in the bar chart.
Q: A 65.0-kg file cabinet is sliding down a rough ramp for a distance of 5.00 m from rest as shown. The…
A:
Q: Problem 5: Suppose the ski patrol lowers a rescue sled carying an injured skiier, with a combined…
A: Work done by the gravitational force on the slide all right so the gravitational force so it is in…
Q: Part 5 of 5 - Hitting the Ground Next, calculate the same values as the box slides along the top of…
A:
Q: Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m.…
A: Write the given values with the suitable variables. W=20 Nh=5 m Here, W is the weight of the box and…
Q: A ball is thrown up into the air. Explain what happens to its potential and kinetic energies as it…
A: Here given a ball thrown up into the air. We have to explain what happened to its potential and…
Q: Phreddy took a trip to Mexico where the famed cliff divers take the plunge. He climbs to the top of…
A: *We'll answer only the first three sub-parts since the sub-parts to be answered were not specified.…
Q: A man slides down a pole and reaches the ground after falling a distance h = 15 m. His potential…
A:
Q: A cyclist in a race must climb a 5° hill at a speed of 8 m/s. If the mass of the bike and the biker…
A: Given that-Mass of the bike and biker,m=80 kgSpeed of the bikerSlope, θ=5°
Q: A baseball has a mass of 0.145 kg. In batting practice a batter hits a ball that is sitting at rest…
A: Part-I: Given: The mass of the baseball is 0.145 kg. The initial speed of the ball is 0 m/s. The…
Q: YouTube to MP3 Co... phone cover for mo... AGARWAL-PHY-166 HW5 Item 1 A 340 kg piano slides 3.0 m…
A:
Q: This is high school physics. Topic: Energy Conservation An unknown force is applied to a 8.0 kg…
A: Given that, Mass (m)= 8 kg Displacement (s)= 15 m Initial speed (u)= 10 m/s Final speed (v)= 20 m/s…
Q: A bus skids for a distance of 25 m with the road pushing on its tires with force of 2000 N as its…
A: Given data: The displacement is d = 25 m The applied force is F= 2000 N The mass of the bus is m =…
Q: A ball of mass 2.12 kg is tied to a string of length 4.15 m as shown in Figure P6.50. The ball is…
A:
Q: A 23.0-kg file cabinet of is sliding down a frictionless ramp for a distance of 5.00 m as shown. Use…
A:
Q: What is the Net Work ? Wnet = Fnetd cos θ Cart Mass, mc . 284 kg Angle, theta 49 degrees…
A: Here given the mass mc, average velocity 0.171 m/sec ,the angleθ= 49°. We have to calculate the net…
Q: A box is initially sliding across a frictionless floor with a constant speed of 2.5 m/s. Then, the…
A: According to the work energy theorem, Work done by the friction = change in kinetic energy
Q: A 1.9 kg mass starts from rest at point A and moves along the x-axis subject to the potential energy…
A: As you have asked for the second part only , here it is :- Turning points are defined as the points…
Q: During terrible weather at a ski-flying world championship, a ski jumper tried to adjust for bad…
A: Mass of ski jumper, m=73kg Drop in height, h=45m
Q: A 390 kgkg piano slides 2.8 mm down a 23 ∘∘ incline and is kept from accelerating by a man who is…
A:
Q: A baseball pitcher sends a fastball toward the batter with a speed of 40 m/s. The batter swings and…
A: Given:- The mass of the ball is m = 145 g The speed of the ball is v = 40 m/s The distance that…
Q: An 8.0 kg robot starts from rest and speeds up to 3.0 m/s in 3.0 s. How much work is done by the…
A: Given data: Mass (m) = 8.0 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 3.0 m/s Time (t) =…
Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…
A:
Q: For the given velocity vector, which of the following force vectors will do NEGATIVE work? Choose…
A: Write the expression of the velocity in the vector form. v→=-vcos70°i-vsin70°j
Q: Three objects with masses m₁ = 6.2 kg, m₂ = 14 kg, and m3 20 kg, respectively, are attached by…
A:
Q: 61 kg skier on level snow coasts 179 m to a stop from a speed of 12.4 m/s. a)Use the work-energy…
A:
Q: EXOQ Compare the auxillary equations in the cases of the double rod ordented Vertically (figure…
A: Step 1: Auxiliary equation comparision ;(a) Vertical rod In figure 1.2(a) :For the vertical double…
Q: Answer the question using law of conservation of energy A 1.00 X 10^3 kg roller coaster starts from…
A: According to conservation of energy , the energy of an isolated system remains constant.…
Q: ke the moment when the spring is fully compressed right before the puck is launched as your initial…
A:
Q: 16 A 35 kg dog in Yulin China on a 4.0 m long swing is released from rest when the swing supports…
A: (a) Maximum potential energy Umax=Ui=mgl1-cos90-θ=35 kg9.8 m/s24.0 m1-cos70.0°=902.74 J≈900 J
Q: A skier, starting from rest, coasts down a mountain that makes an angle of 20.0 ° with the…
A: SOlution: Given that angle = 20 degee coeff friciton = 0.175 d = 10.5 m
Q: A 2.0kg block starts with a speed of 10. m/s at the bottom of a plane inclined at 35° to the…
A:
Q: Examine the following graph. How much potential energy (in joules) will correspond to a turning…
A: We are given a potential energy graph. We are also given kinetic energy at a given point. We find…
Q: 2. Car 1 has 8 times the mass of car 2, but only 0.4 as much kinetic energy. What is the ratio…
A:
Q: A 355.0 g block is dropped onto a vertical spring with a spring constant k = 276.0 N/m. The block…
A:
Step by step
Solved in 2 steps with 1 images
- Stopping distance. A car is traveling on a horizontal road with speed v_0=13.9 m/s at the instant the brakes are locked, so the tires are sliding instead of rolling. Use the work-energy theorem to calculate the minimum distance the car can stop if the coefficient of kinetic friction \mu_k=0.7 between the tires and the road. B: A: 12 m 16 m C: 17.5 m D: 14 m. E: 23.7 m(Figure 1) is the energy bar chart for a firefighter sliding down a fire pole from the second floor to the ground. Let the system consist of the firefighter, the pole, and the earth. Suppose E1 = 16 J. A.) What is the bar height of Wext? B.) What is the bar height of Kf?Three objects with masses m, = 6.6 kg, m, = 14 kg, and m3 = 16 kg, respectively, are attached by strings over frictionless pulleys as indicated in the fiqure below. The horizontal surface exerts a force of friction of 30 N on m,. If the system is released from rest, use energy concepts to find the speed of m, after it moves down 4.0 m. m/s m2 m1
- Solution to HW problem with all work and explanation, please.An object with a mass of 12.5 kg is moving along a rough horizontal surface. At a certain point it has 66 J of kinetic energy. If the coefficient of friction between the object and the surface is 0.44, how far will the object go beyond that point before coming to a stop? Express your answer in meters, to at least one digit after the decimal point. plz help and use g = 9.8(8c7p19) A cord is used to vertically lower an initially stationary block of mass M = 45 ką at a constant downward acceleration of q/7. When the block has fallen a distance d = 4.5 m, find the work done by the cord's force on the block. Submit Answer Tries 0/5 Find the work done by the weight of the block. Submit Answer Tries 0/5 Find the kinetic energy of the block. Submit Answer Tries 0/5 Find the speed of the block. Submit Answer Tries 0/5
- Hi there!! My question is bolded below :) It is a multiple choice question, so I have also listed every possible answer. A person with a mass of 42kg starts from rest at position A, as shown, and then slides down to positions B, C, and D. Calculate the gravitational potential energy of the person at A. 412 J 672 J 4.2 kJ 6.6 kJ Thanks!Computation. A ceramic figurine is launched at 31 m/s at 34.2° above horizontal. What is its speed when it reaches half its maximum height? [Hint: Start by obtaining the relation between its launch velocity (speed and angle) and its maximum height. Use that relation to eliminate the final height from the energy conservation equation.] v= m/s Record your numerical answer below, assuming three significant figures. Remember to include a "-" if/when necessary. ☆A pendulum with a light string and a mass attached to it. As the pendulum swings downward. What is the work done by the strings tension on the mass (+, - or 0) and why?
- A mechanic pushes a m=2300 kg car from rest. He does W=4850 J of work in the process. During this time the car moves d327 m. Neglect the friction to answer the following questions. What is the horizontal force exerted on the car? Units: What is the velocity of the car at the final distance? Units:Can the work done by Friction be zero? In a case where static friction exists, the object does not move and the change in kinetic energy is also zero? W = Fd = ?KE = 0? What did I do wrong?As shown in the figure below, three blocks with masses m₁ = 4.8 kg, m2 = 14 kg, and m3 = 18 kg, respectively, are attached by strings over frictionless pulleys. 1711 m2 ms The horizontal surface exerts a 32 N force of friction on m2. If the system is released from rest, use energy concepts to find the speed (in m/s) of m3 after it moves down 3.0 m. m/s