A 90 kg fireman is sliding down apole at a constant speed of 1.2 m/s. What is the frictional force acting on thefireman is closest to? Choices: 10,800 N 90 N 0 N 900 N 108 N   Show complete solution and free body diagram

Q: A freight train has a mass of 1.1 x 10 kg. If the locomotive can exert a constant pull of 6.9 x 105…

A: Given  F = 6.9*10⁵ F  M= 1.1*10⁷ Kg  V2 = 86 km/h  V1 = 0 km/h  T =????    Question 9 ... Given a =…

Q: täl. Name the forces acting on Bob. Draw a free-body diagram. Find the values of the forces. 4. You…

A: 4th Let us represent "Roberta" as a block here "Roberta" is on a horizontal road, and we are…

Q: A block weighing 200 N is pushed along a surface. If it takes 80 N to get the block moving and 40 N…

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Q: on it, as shown below. The mass of the car is 1000.0 kg. The road is slick, so friction can be…

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Q: Q2. A force F of magnitude 20 N is applied to a block of mass m2 = 1.5 kg, as shown in Figure 2. The…

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Q: Two forces (F1=4N, F2=30N) act on a 5.0 kg block on a frictionless surface, as shown in the below…

A: Given data: Magnitude of force F1 is, F1=4 N. Magnitude of force F2 is, F2=30 N.

Q: A crane operator lowers a 16, 000-N steel ball with a downward acceleration of 3m/s2. The tension…

A: Given data:  Weight of steel ball (W) = 16,000 N Acceleration (a) = 3 m/s2, downward Required: The…

Q: A small block is resting on a rough incline. There is a rope attached to the block that is pulling…

A: Let the mass of box = m  Let the tension in rope = T

Q: Two blocks of masses m1 = 1 kg and m2 = 0.30 kg are connected by a light inextensible cord passing…

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Q: Boxes A and B are in contact on a horizontal, frictionless surface, as shown in the following…

A: Step 1It is given that

Q: A student is drawing a free body diagram for the following scenario: “A penguin accelerates by…

A: Free body diagram shows the magnitude and directions of all the forces acting on the body.

Q: A block with mass of ?1 = 2 ?? is placed on top of a block with a mass ?2 = 4 ??. A horizontal force…

A: (a) The mass of the block m1 is 2 kg. The mass of the block m2 is 4 kg. Consider the acceleration…

Q: 8.6A - Balanced and Unbalanced Forces Activity Sheet 36 m/s2 Station 2 This activity will assess…

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Q: Two blocks M, = 3 kg and M, = 5 kg are in contact with each other on a frictionless, horizontal…

A: When two blocks are in touch  with each other ,then they act like a single system and move together…

Q: A constant horizontal force Fapp is applied to block A of mass MA, which pushes against block B of…

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Q: a 25.3kg object is pulled up a frictionless hill with a 260N force. a) determine normal force b)…

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Q: 1. Three blocks of masses 1.0, 2.0, and 4.0 kg are connected by two massless strings, one of which…

A: GivenThree blocks of masses 1.0 kg, 2.0 kg, and 4.0 kg are connected by two massless strings

Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…

A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…

Q: During your winter break, you enter a sled race. You push the sled with a force of 210 N at 30.0°…

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Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…

A: Force exerted by Jack (F) = 83.5 N (due east) Force exerted by Jill (F') = 98.3 N @ 45o north of…

Q: The diagram below shows a 4.0-kilogram object accelerating at 10.0 meters per second2 on a rough…

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Q: 3) A 2700-kg airplane pulls two gliders, the first of mass 210 kg and the second of mass 235 kg,…

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Q: What is the magnitude of the acceleration of the two blocks? What is the minimum value of µs needed…

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Q: In the figure, two blocks are being pulled by a force of 12N at a constant velocity. Block one has a…

A: The free body diagrams of both the blocks are shown below. Here, T is the tension in the string, N1…

Q: A 39.0 N force pulls horizontally on a m1 = 1.3 kg block that slides on a rough horizontal surface.…

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Q: 39.0 N force pulls horizontally on a m1 = 1.3 kg block that slides on a rough horizontal surface.…

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Q: Two blocs of masses m1= 2 kg and m; = 4 kg are connected by a (massless) rope that passes over a…

A: SOlution:

Q: A 10-kg block is connected to a 40-kg block as shown in the figure. The surface on that the blocks…

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Q: A 10-kg block is connected to a 40-kg block as shown in the figure. The surface on that the blocks…

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Q: Two objects are connected by a light string that passes over a frictionless pulley as shown in…

A: (a) Draw the free-body diagram of the mass m1 and m2.

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

A: Given: The reading of the person is 846 N ( when the elevator is at rest)

Q: A contestant in a winter games event pulls a 53.0 kg block of ice across a frozen lake with a rope…

A: Given: The mass of ice (m) = 53.0 kg Coefficient of static friction μs=0.1 Coefficient of kinetic…

Q: Figure shows the velocity graph of a 65 kg student in an elevator. Match the answers with questions.…

A: Given that: Mass of the student: m=65 kg

Q: That same 80 kg object is sliding across the table because you are applying a force of +300 N. If…

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Q: Mary applies a force of 76 N to push a box with an acceleration of 0.40 m/s2. When she increases the…

A: force by Mary (F1) = 76 N Acceleration produced(a1 )= 0.40 m/s2 New Force (F2) = 84 N New…

Q: 1. A 5.0-kg object is suspended by a string from the ceiling of an elevator that is accelerating…

A: Write the expression for net force using Newton’s second law of motion

Q: Tul m₂ F

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Q: E = 10N N. F = 2N F = 8 N 5 = 10 N Study the free-body diagram above and choose the statement that…

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Q: 2. Two blocks of masses m, = 3.0 kg and m2 = 1.0 kg are at rest on the inclined plane as shown in…

A: Newton's law: Newton's first law asserts that if a body is at rest or moving in a straight path at a…

Q: 2. Two blocks of masses m, = 1 kg and m2 = 0.30 kg are connected by a light inextensible cord…

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Q: Two blocks of masses m, = 1 kg and m2 = 0.30 kg are connected by a light inextensible cord passing…

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Q: string that passes over a frictionless pulley a 5. Two packing crates of masses m, = 10 0 ko and ma…

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Q: Two objects are connected by a light string that passes over a frictionless pulley as shown in the…

A: Tension in string for m1 = m1(g-a) = 6 * (9.8 - 1.421) = 50.274 NTherefore, tension on other side…

Q: Two blocks of masses m = 1 kg and m2 = 0.30 kg are connected by a light inextensible cord passing…

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Q: - kg sled sliding freely in the positive direction on an icy surface experiences a 3-N frictional…

A: Friction force = f = 3N  Air resistive force = fa = 0.6 N  Mass of sled = 9 kg  From Newton’s second…

Q: A light rope is attached to a block with mass 4.00 kg that rests on a frictionless, horizontal…

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Q: Two blocks are connected by a heavy 10 kg chain. The mass of the top block is 30 kg and the mass of…

A: (a) acceleration is, a=Fnetmtot=320 N-30 kg+10 kg+24 kgg30 kg+10 kg+24 kga=Fnetmtot=320 N-30 kg+10…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!