A train shown is traveling at a speed of 45mi/hr. A constant braking force of 4300 lbs is applied to each car. A) What is the time required for the train to stop after the brakes are applied? B) What is the force in the coupling between the cars while the train is slowing down

Q: A car drives onto a section of the road which is covered in ice. The driver attempts to stop by…

A: stopping distance(s)=60m initial speed(u)=40 km/h=40×1000 m3600 sec=11.1111 m/sec final speed(v)=0…

Q: A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their…

A: Given that: length of incline (book):  23 cm initial velocity: 0 m/s Angle of incline (book):  35o…

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Q: With the help of a rope you want to drag a crate of mass equal to 150 Kg. The coefficient of kinetic…

A: Static friction is the force between an object and a surface, which acts against any moving object…

Q: Question 15 A car traveling at 26.4 m/s hits a tree. A passenger in the car, who has a mass of 64.0…

A: Initial velocity (u) = 26.4 msmass (m) = 64 kg distance moved (d) = 56 cm = 0.56 m final velocity…

Q: If the maximum coefficient of kinetic friction between 1855 kg Toyota Innova Crysta and a road is…

A: Maximum coefficient of kinetic friction           μm=0.6Mass of the car is M= 1855 kgFrictional…

Q: Consider the system below: Frictionless, massless pulley - B Block A has mass ma and block B has…

A: Given data:  Mass of block A = mA   Mass of block B = mB  Coefficient of static friction = μs

Q: Print the References and Equations Sheet and use it to complete this question. You also may use a…

A: The problem can be solved by using the free body diagram. We have to consider the fact that drag…

Q: In the figure, two blocks are connected over a pulley. The mass of blockA is 15.0 kg and the…

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Q: A crate of mass m=2.0 kg is placed on a frictionless inclined plane of angle θ=30. a) Determine the…

A: Given data The mass of the crate is m = 2 kg The angle of inclination is θ = 30° The kinetic…

Q: A 9900 N small car is moved by a 650 N force. If the car starts from the rest, then how fast is it…

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Q: A 40 N box is resting on a table when a 10 N force is applied to it horizontally. The coefficients…

A: Frictional force F = uN

Q: A car starts from rest and is traveling at 60 mph after 15 seconds. The driver immediately lifts…

A: As V=Vi+at S=Vit+1/2at2

Q: A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their…

A: Kinetic friction opposes the relative motion between the two surfaces. It is given by f=μkNWhere μk…

Q: A crate of milk chocolate is being moved up a 63° ramp as shown. The crate has a mass of 10 kg. The…

A: Given:θ=63°m=10kgF=1320 NN=1136 Nμk=0.180d = 1.9m

Q: There are nine books in a stack, each with a weight of 5.5 N. The coefficient of friction between…

A: Given that - Weight of each books Coefficient between the table and bottom book.

Q: An object of mass 380 kg is sliding on a track. From A to B, the track is frictionless. From B to C…

A: Given, Mass of the object (m) =380 kg. The velocity of the object at point A vA =10m/s. The time…

Q: Same situation as in the previous problem this time the magnet has mass 5.13 kg, the force pulling…

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Q: Determine the acceleration of the masses

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Q: An SUV hauling a trailer is travelling at 20 m/s when the driver brakes. The 1.2 MT trailer is…

A: Kinetic energy is the energy of motion, observable as the movement of an object, particle, or set of…

Q: A car created 68.5 m long skid marks at a traffic wreck scene. A State Patrol investigator uses a…

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Q: A) what is true about the direction of the net force and the direction of the acceleration? (B) A…

A: Part A: According to Newton’s second law of motion, the force F on an object of mass m and…

Q: Packages A and B are connected by a cord running over a pulley. The coefficient of kinetic friction…

A: 1. According to the given question,  here there are two blocks having the mass,  MA= 15 Kg MB = 8 Kg…

Q: The distance from the release point to the target of a curling sheet is around 42.3 meters. A study…

A: The Force due to friction is given by f=-μR=-μmg m is the mass. From newtons second law we have…

Q: An object of mass 380 kg is sliding on a track. From A to B, the track is frictionless. From B to C…

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Q: PROBLEM 2: On an outdoor skate board park, a 40-kg skateboarder slides down the smooth curve skating…

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Q: A wet bar of soap slides down a ramp 10.0 m long inclined at 11.73°. What would be its acceleration?…

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Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: A compressed spring of k = 60 N/m is released from rest on a frictionless surface. What is the…

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Q: A 6.0-lb stroller resting on a horizontal floor is pulled by a 85-lb boy with a constant force of…

A: Given mass of stroller ms = 6 lb = 2.72 kg mass of boy mb = 85 lb = 38.56 kg value of Force F = 75…

Q: A 12.47kg object speeds up from 1.63m/s to 3.13m/s over a distance of 18.57m. What is the…

A: Given: The mass of the object is 12.47 kg. The initial velocity of the object is 1.63 m/s. The final…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

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Q: A 2234 kg car is traveling at 30.0 m/s on a flat surface. It encounters an incline angled at 15…

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Q: The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction…

A: Initial velocity (U)= 51 km/h = 14.16 m/s  Final velocity (V) = 0 m/s Coefficient of friction (µ) =…

Q: HELP WITH PHYSICS PROBLEM A car has a mass of 1500 kg. If the driver applies the brakes, the maximum…

A: Mass of vehicle is The maximum frictional force is Initial velocity is Note:Find:The shortest…

Q: A skier is on a mountain whose slope is 20 °. The coefficient of kinetic friction is 0.22. At a…

A: Concept used: Frictional force acts in direction opposite to direction of motion. Equations of…

Q: A dockworker applies a constant horizontal force of 71.0N to a block of ice on a smooth horizontal…

A: According to the given data F=70 N S=10.5m t=4.80 sec. We need to find What is the mass of the…

Q: Same situation as in the previous problem this time the magnet has mass 7.06 kg, the force pulling…

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Q: 8) A 31.0 kW electric motor drives a vehicle at an average velocity of 9.20 m/s. Assuming a constant…

A: Given: Electric power, P=31.0 kW Average velocity, v=9.20 m/s   To determine the magnitude of…

Q: Sam has a mass of 116kg, he attempts to see how high he can jump by performing a standing high jump.…

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Q: Mike pushes a box with a mass of 5.97 kg giving it an initial velocity of 2.64 m/s. The box comes to…

A: Given :- The mass  m= 5.97 kg  The initial  velocity u = 2.64 m/s  Final velocity v = 0 m/s…

Q: A study found that the coefficient of friction between the ice and curling stone is 0.02. The…

A: Coefficient of friction μk =0.02   Distance d = 30m

Q: A train has a 500,000 kg engine towing 20 cars on a level track. Each car has a mass of 100,000 kg.…

A: The equilibrium condition is,   ma-μsmtraing=0⇒ma=μsmtotalgμs=mamtotalg

Q: bus accelerates from rest until it reaches a speed of 1000 m/s. Assuming 50 s elapsed and the bus…

A: