The fuel burns exerting a time-varying force on the small 2.00 kg rocket model during its vertical launch. This force obeys the equation F= A + Bt2. Measurements show that at t=0, the force is 25.0 N, and at the end of the first 2.00 s, it is 45.0 N. Assume that air resistance is negligible.   What are the forces acting on the rocket?          2. Draw its free-body diagram.

Q: The following four forces act on a 4.00 kg object: F1= 300 N east %3D É, = 700 N north %3D É3= 500 N…

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Q: 1. Initially, as a box of mass 1.0kg moves with velocoty 2.0m/s to the right, a force of magnitude…

A: 1.  mass,  m = 1 kg  initial velocity, u = 2 m/s Force, F = 20 N  friction coefficient, uK= 0.25…

Q: A block of mass m1 = 3.24 kg on a frictionless plane inclined at angle 0 = 33.3° is connected by a…

A:

Q: A 2400-kgkg airplane pulls two gliders, the first of mass 310 kgkg and the second of mass 250 kgkg,…

A: Given data: Mass of airplane (M) = 2400 kg Mass of First glider (m1) = 310 kg Mass of second glider…

Q: A boat moves through the water at a constant velocity of 7.8 m/s with two forces acting on it. One…

A: Given Data: Boat constant velocity, u=v=7.8 m/s Forward Push, F1=2.21×103 N

Q: A woman who weighs 602 N sits on a chair with her feet on the floor and her arms resting on the…

A: Given:-  A woman who weighs  Ww=  602 N She sits on a chair with her feet on the floor and her arms…

Q: help on 2 part question asap please. Solve: A) A 8 kg block is dragged up a hill at constant…

A:

Q: Suppose a 63.5 kg gymnast climbs a rope. (a) What is the tension (in N) in the rope if he climbs at…

A: (a) Write down the given value using a suitable variable. Here m signifies gymnast mass. and a…

Q: Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1…

A: Given Data: The first force F1 is, F1=439 N The second force F2 is, F2=392 N The mass of a car is,…

Q: A block of mass m1 = 3.48 kg on a frictionless plane inclined at angle θ = 33.6° is connected by a…

A: Given- Mass of block is (m1) = 3.48 Kg Mass of block 2 (m2) = 2.53 Kg Inclined angle θ=33.6°

Q: Q. The mass of a car is 1000 kg. How much force would be required to accelerate the car at a rate of…

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Q: A block of mass m1 = 3.19 kg on a frictionless plane inclined at angle 0 = 33.8° is connected by a…

A:

Q: Which one(s) of the following force diagrams depict an object moving to the right with constant…

A:

Q: 1) A rock is thrown vertically into the air. At the top of its path, it's acceleration is? A.…

A: 1. When rock is thrown vertically, it's acceleration is same everywhere and equals to 9.8 m/s2. So…

Q: A jet aircraft with a mass of 4,650 kg has an engine that exerts a force (thrust) equal to 60,800 N.…

A: According to Newtons second law the force on an object is equal to the product of its mass and…

Q: force

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Q: 3. The coefficient of kinetic friction between the 2.0 kg block in the figure and the table is 0.30.…

A:

Q: A rope attached to a load of 150,kg bricks lifts the bricks with a steady acceleration of 0.26_m/s´…

A: Given: The mass of brick is m=150 kg. The acceleration is a=0.26 m/s2. The schematic free body…

Q: An 1100 kg car accelerates at 3.40 m/s2   A) What is the net force acting on the car?    B) If…

A: As the question has more than three sub parts, first three are solved.

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

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

A:

Q: A model rocket is fired vertically from rest. It has a constant acceleration of 15.3 m/s^2 for the…

A: The force during the initial 1.5 sec is given by                                F=m*a…

Q: World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly…

A: Given data: The mass of the sprinter, m=58 kg. The horizontal acceleration of the sprinter, a=15…

Q: A jet aircraft with a mass of 4,550 kg has an engine that exerts a force (thrust) equal to 59,200 N.…

A: Given: The mass of a jet aircraft is m = 4550 kg. Force exerted by the engine is F =59200 N.

Q: A rescue helicopter is lifting a man (weight = 822 Newton's) from a capsized boat by means of cable…

A: a)The required tension when the man is given an initial upward acceleration is,

Q: A 72 kg person is parachuting and experiencing a downward acceleration of 2.2 m/s2. The mass of the…

A: Given: Mass of the person=M=72 kg The mass of the parachute=m=4.8 kg The free-body diagram for the…

Q: Q3/ A particular subject of mass 4 Kg is applied on using four different forces with magnitudes of…

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Q: 1. A 25-kg box is attached to two light ropes and is being pulled in a frictionless, horizontal…

A: Mass of the block is m = 25 kg Force acting on the block in east direction is F1 = 15 N Force acting…

Q: In the figure below, two objects of m1=5.0 kg and m2=10 kg are connected to each other with a light…

A: (a)   The free-body diagram for both the objects are as below.

Q: A hoist is used to lift a 780 kg car upward with an acceleration of 0.110 m/s². a) What is the net…

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Q: , what will its acceleration be? (b) What is the tension in the

A: M1= 5Kg M2=10Kg As M2 released then M2 = 0

Q: A 55 kg block is hanging vertically from a massless string in an elevator. (a) If the elevator is…

A: (a) tension in the string if the elevator doesn’t move T-mg=maT=mg+a=55 kg9.8 m/s2-0=539 N≈540 N

Q: A 90-kg skydiver jumps out of a plane above the earth. ⦁ As soon as he exits the plane, when there…

A: we know that if there is no other force acting on him, then the only force which acts is the…

Q: 3. A van is pulling a trailer along a level road, as the figure below illustrates. The mass of the…

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Q: A soccer ball is in contact with the foot of a player kicking it at an angle of 30o, with a force of…

A: Angle to the horizontal = 30 °  Force applied = F = 200 N  Horizontal component of force, Fx =…

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

A:

Q: Chapter 04, Problem 072 7 Your answer is partially correct. Try again. A fisherman is fishing from a…

A: Using Newton’s second law,

Q: jet aircraft with a mass of 4,650 kg has an engine that exerts a force (thrust) equal to 60,800 N.…

A:

Q: 19. Which of the following situations applies Newton's Third Law of Motion? A. The gun recoils into…

A:

Q: A person weighing 935. N rides in an elevator that has a downward acceleration of 1.26 m/s2. What is…

A: According to Newton’s law, F = ma The mass of the is given by, m=Wg=935 N9.8 m/s2=95.41 kg

Q: A horizontal force of magnitude F = 47.6 N pushes on a block of mass m = 6.08 kg. The block is on a…

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Q: A 2700 kg car traveling to the north is sloweddown uniformly from an initial velocity of 36.6m/s by…

A:

Q: You work at a garden store for the summer. You lift a bag of fertilizer with a force of 114 N, and…

A: Given: The applied force on bag is F=114 N Bag moves upward with acceleration a=0.810 m/s2 Note: 1…

Q: A crane is pulling a load (weight = 818 N) vertically upward. (a) What is the tension in the cable…

A:

Q: A block of mass m1 = 3.41 kg on a frictionless plane inclined at angle 0 = 26.1° is connected by a…

A: Given Mass M1 =3.41 kg θ=26.1 M2 =2.37

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?”