A student is trying to find the force on a person at the top of an inverted roller coaster, where the person is upside down at the top, and writes the equation S + mg = mv 2/r. What would you say about that?   A Yes, that’s correct.   B Close, but it should be written S - mg = mv2/r.   C Close, but it should be written mg - S = mv2/r.

Q: A car traveling at 20 m s" collides with a massive wa!l and stops instantly. A passenger of mass 75…

A: Given, velocity of car = 20 m/s So, velocity of passenger = 20m/s  mass of passenger, m = 75kg Now,…

Q: В A A stack of books of total mass 1.18kg is placed on a table as seen in A. It is then placed on a…

A:

Q: A student is trying to find the force on a person at the bottom of a Ferris wheel, and writes the…

A: Answer is option (B)Centripetal force may be due to one or more individual forces such as normal…

Q: An object with a mass of m= 15 kg is at rest on a frictionless surface and is subject to 2 forces…

A:

Q: You are riding in an elevator on the way up to your apartment. The elevator is accelerating upward…

A: Given: Upward acceleration of elevator is 1.2 m/s2 Mass is 30 kg Kinetic friction coefficient is…

Q: The distance between two telephone poles is 42.8 m. When a 1.00-kg bird lands on the telephone wire…

A: STEP 1:Given that,The weight of the bird, m=1.00kgdistance between two telephone poles, D=42.8mThe…

Q: A 8 kg decoration hangs from the ceiling. It is suspended by 2 wires. The first wire forms a 40°…

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

Q: The distance between two telephone poles is 60.0 m. When a 1.00-kg bird lands on the telephone wire…

A: The angle can be found from the tan given by,   tan θ= Opposite sideAdjacent side The gravitational…

Q: A 1.0-kg block slides on a rough horizontal surface. A force, P = 9.0 N, is applied to the block at…

A: Given that,Mass of block : m = 1 (kg)Applied force on block :P =9 (N)Acceleration of block along the…

Q: Problem 3: While sliding a couch across a floor, Hannah and Andrea exert forces FH and FA on the…

A:

Q: n 8 of 8 19.3 lb object has the acceleration components (0.) (0). (a63) 0.35 +( 0.65 s2 11.7 s2 0.63…

A: At t=3.67sec

Q: A physics student in an elevator, places a 200.0 g mass on an electronic balance. The palance,…

A: lift is travelling upward with decreasing speed  the elevator is travelling downward with increasing…

Q: It's a snowy day and you're pulling a friend along a level road on a sled. You've both been taking…

A:

Q: Ꮎ Chain Fixture Rope

A: Here we will find the work done on fixture

Q: A 35 kg block is at rest on an inclined plane at 13°. What is the magni- tude of the normal force on…

A: By using free body diagramAccording to Newton's third lawN=mg.Cosθ                  Equation 1

Q: A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a…

A: Given data, Mass of the player m=90 kg Force exerted F=800 N Acceleration a=1.7 m/s2

Q: A box (400 kg) is on the floor. The coefficient of static friction = 0.8 between the box and the…

A:

Q: A rifle with a barrel length of 60 cm fires a 13 g bullet with a horizontal speed of 450 m/s. The…

A:

Q: A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W =…

A: Given Data: Initial speed of elevator is zero. Reading of scale when elevator is at rest W=895 N…

Q: A cube of mass m¡ = 6.2 kg is sitting on top of a second cube of the same size and mass m2 = 0.5 kg…

A: When an object is free fall it's acceleration is equal to acceleration due to gravity.

Q: A 61.0 kg sprinter starts a race with an acceleration of 2.20 m/s2. What is the net external force…

A: Given data:  Mass (m) = 61.0 kg Acceleration (a) = 2.20 m/s2 Required: The net external force (Fnet)…

Q: A 9.50 kg object has the given x and y acceleration components. a, = (039) + (0.73프) ' a, = (11.7) -…

A: Given: The mass of the object is 9.5 kg. ax=0.39 m/s2+0.73 m/s3tay=11.7 m/s2-0.91 m/s3t

Q: a. You are a newly graduated astronaut preparing for your first trip into space. Plans call for your…

A: For part a) Velocity= 500 m/s time 2.40 minutes weight= 735 N = 75 kg                   (as, 1 kg =…

Q: A crate of mass m=66.2 kg is on a horizontal surface. Assume there is no friction between the crate…

A:

Q: A student is trying to find the force on a person at the top of a Ferris wheel, and writes the…

A:

Q: a. Determine the y-component of this force if the magnitude of the force is equal to 340kN. O 167.81…

A:

Q: A fire helicopter carries a 555-kg bucket of water at the end of a 20.0-m long cable. Flying back…

A:

Q: A piece of string is hanging from a rod of 5 m as shown below. A 4500 N weight hangs from the…

A: The tension is the force that acts at both extremities of the string. This force helps to elongate…

Q: A student's backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an…

A:

Q: A black widow spider hangs motionless from a web that extends vertically from the ceiling above. If…

A: Given The mass of spider is m = 1.70 g = 1.70 x 10-3 kg. When the spider is hanging at the ceiling…

Q: THINK AND RANK (ANALYSIS) 31. A van exerts a force on trailers of different masses. Compared with…

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Q: You have just landed on Planet X. You release a 180 gg ball from rest from a height of 10.0 mm and…

A: Write the second kinetic equation and substitute the required values to determine the acceleration…

Q: figure below shows Superhero hanging motionless from a rope, with Trusty Sidekick hanging below him.

A: GivenMass of superhero, m1=86.5 kgMass of thrusty sidekick, m2=58 kg

Q: A block with mass m1 = 7.5 kg rests on the surface of a horizontal table which has a coefficient of…

A: According to the company policy, first three parts would be answered. Please post the rest…

Q: Coulomb constant, k = 8.987 × 10° N · m² /C2. Vacuum permitivity, €o = 8.854 × 10-12 F/m. Magnitude…

A:

Q: The figure below shows Superhero hanging motionless from a rope, with Trusty Sidekick hanging below…

A:

Q: It's a snowy day and you're pulling a friend along a level road on a sled. You've both been taking…

A: The mass m=56 kgThe force F=88 NThe angle θ=410

Q: Which of the following is NOT true of the force of gravity? There is a gravitational force between…

A: The force of gravity acts on mass regardless of the magnitude of the mass and the separation between…

Q: Two blocks of masses M1=3.5 kg and M2=5.7 kg are at rest on a horizontal surface with a coefficient…

A: A) Analyze the following free body diagram of block M1. Analyze the following free body diagram of…

Q: A car driver is stopped at a red light at an intersection. When the light goes green, she puts her…

A:

Q: Two forces, F1 and F2, act at a point. F1 has a magnitude of 8.60 N and is directed at an angle of…

A: Given F1 = 8.60 N and is directed at an angle of 55.0∘ above the negative x-axis F2 = 5.60 N and is…

Q: a. Find the horizontal and vertical components of the force. b. Is the horizontal component of the…

A: Magnitude of force acting on the strap (F)=40lb a)angle made by force with horizontal =60o cosθ=Fx/F…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”