Two identical freight cars roll without friction towards each other, in opposite directions, on a level track. One car rolls at 3.4 m/s. After the cars collide, they couple and roll together with a speed of 2.2 m/s. The speed of the second car before the collision is _______ m/s (to two significant figures).

Q: A 2 kg ball is moving at 2.4 m/s perpendicular to a wall. Upon hitting the wall, the ball rebounds…

A: The initial momentum of the ball is.The final velocity of the ball rebounds in opposite direction so…

Q: Which of the following objects has the greatest momentum? O A 0.15 kg object moving at 2 m/s O A 0.4…

A: According to question we need to choose correct option.

Q: A mine car (mass=380 kg) rolls at a speed of 0.50 m/s on a horizontal track, as the drawing shows. A…

A: Mass of vehicle is Initial velocity of vehicle is along +x-axis.Mass of object is Initial velocity…

Q: A car with a mass of 2000 kg is initially traveling due east with a speed of 20.0 m/s when a dog…

A: Given, Mass of car,m=2000 kg Initial velocity of car,u=20 i Final velocity of car,v=15 cos30°i+15…

Q: A car of mass 1760 kg is speeding up on level ground. Its position as a function of time is where…

A: A = 105.3 m  t1 = 9.8 s  M = 1760 kg  x(t) = A{t/t1 + t⁵/t⁵1}

Q: A railroad car that has an inertia of 10 Mg is moving to the right at 5.0 m/s when it collides and…

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Q: Problem 3. On a hockey table, pucks A and B of 170 g each impact according to the figure shown. If…

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Q: 10.20-g bullet is fired into a stationary block of wood having mass m = 4.940 kg. The bullet imbeds…

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Q: The SI unit of momentum is kg O kg · m O none of the given answers is correct O kg

A: Momentum is the multiplication of mass and velocity.

Q: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

A: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

Q: Three objects with masses m1, m2, and m3 moving with the same speed get together and make a…

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Q: A 2.5-kg stone is released from rest and falls toward Earth. After 4.0 s, the magnitude of its…

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Q: Margie and Bill, both with brand new roller blades, are at rest facing each other in the parking…

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Q: A 0.75 kg stationary ball is struck by a 2 kg mallet, and leaves the collision at 22 m/s. The ball…

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Q: Calculate the net momentum of A and B. Include direction. Round to the

A: Given: The mass of block A is 6 kg.           The velocity of block A is 5 m/s.            The mass…

Q: 3. Harry Potter is doing his usual thing of cruising around looking for the Golden Snitch when a…

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Q: A rocket sled with a mass of 2230 kg moves at 210 m/s on a set of rails. At a certain point, a scoop…

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Q: A bullet with a mass of 3.20 g moves at a speed of 1.50 ✕ 103 m/s. If a racquetball of mass 86.2 g…

A: Given:Mass of bullet (mb) = 3.2 gmSpeed of bullet (vb) = 1.5×10-3 m/sMass of racquet ball (mr) =…

Q: An object of mass 2 kg collides with an object of mass 1 kg that is at rest, as shown in the figure.…

A: given - mass of object 1 (m1) =2kg mass of object 2 (m2) =1kg As object 2 is in rest initially ,…

Q: A ball with original momentum +7.0 kg m/s hits a wall and bounces straight back without losing any…

A: given the initial momentum of the ball pi = +7.0 kg m/s and the ball does not lose the kinetic…

Q: The table summarizes the known values for a completely elastic collision. Given the information,…

A: m1u1+m2u2=m1v1+m2v2

Q: A ball is rolling at 10.0 m/sec when it collides with a stationary ball that is half its mass. The…

A: Given data: Initial velocity of first ball (u1) = 10.0 m/sec Initial velocity of second ball (u2) =…

Q: 0780938042 حمد العزام Ex : Two billiard balls are travelling to the right with speeds (v1 = 0.5 m/s)…

A: According to the principle of conservation of momentum, the total momentum of the system must be…

Q: 7. A billiard ball is shot west at 3.00 m/s. A second, identical billiard ball is shot east at 2.00…

A:

Q: A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one…

A: Given that            the mass of the bullet is (m) = 0.04Kg            The speed of the bullet is…

Q: Which of the following statement is false? A Momentum is a vector quantity B Impulse equals change…

A: To identify : The false statement out of the given five statements

Q: What is the time during which the force is in contact with the mass?

A:

Q: An object with a mass of 5.00 g is moving to the right at 14.0 cm/s when it is overtaken by an…

A: Given data: Mass of the object m = 5.00 g Initial speed u1=14.0cm/s Mass of the object 2 m2=26.0g…

Q: wo identical pucks collide elastically on an air hockey table. Puck 1 was originally at rest; puck 2…

A:

Q: Two friends are playing pool at arcade center. One guy hit the cue ball to strike at another ball…

A: Consider the following diagram,

Q: LEASE SEND IN 10 MINUTES!!! Consider the collision pictured below. While m2=10kg is initially at…

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Q: An object with m = 150.0 kg moves to the right with a velocity of 5.78 m/s and then heads left with…

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Q: An impulse of 300 kgᐧm/s (Nᐧs) is produced over a time interval of 5 seconds.  What force must be…

A: Solution: Given:J = impulse produced = 300 N.sdt = time interval = 5 sF = force applied to produce…

Q: A car (mass = 1030 kg) is traveling at 30.1 m/s when it collides head-on with a sport utility…

A: We'll apply law of conservation of momentum here

Q: A bullet with a mass of 2.90 g moves at a speed of 1.50 ✕ 103 m/s. If a racquetball of mass 86.4 g…

A: Momentum of the bullet = Mass of the bullet ✕ Speed of the bullet =2.90 g ✕ 1.50 ✕ 103 m/s = 4.35 ✕…

Q: An object with a mass of 8.00 g is moving to the right at 14.0 cm/s when it is overtaken by an…

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Q: Two pieces of tape are put on the air track at a distance of 1.50 m. A 0.350 kg glider on the air…

A: Apply kinematic equation to the glider to find the velocity of glider.

Q: Revew A02 kg plastic cart and a 20 kg lead cart can both roll without friction on a horizontal…

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Q: The figure below shows two pendulums.  Sphere m1 has a mass of 40 g and sphere m2 has a mass of 80…

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Q: The peak deceleration is 34 m/s/s and the duration of the collision is 0.27 s.  The sheep's mass is…

A: As per the given data,  deceleration(a) = -34 m/s2   Time(t) = 0.27 s   Mass(m) = 90 kg

Q: A force of 35.34 N acts on a mass changing its momentum by 26.72 kg m/s.  What is the time during…

A: According to new second law of motion, relation between change in momentum, time and force is given…

Q: 2 Ball #1 mass = 1 kg velocity = 2.3 m/s Ball #2 mass= 1.5 kg velocity = 0.1 m/s %3D What is the…

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Q: E3. A bowling ball has a mass of 7 kg and a speed of 1.5 m/s. A major league baseball has a mass of…

A: The momentum of an object is calculated by using the formula p=mv , where m is the mass of the…

Q: The particle starts from rest at t = 0. What is the magnitude p of the momentum of the particle at…

A: Part(a)          The particle starts from rest at t = 0. What is the magnitude p of the momentum of…

Q: The three balls in the overhead are identical. Balls 2 and 3 touch each other and are aligned…

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Q: In the arrangement of the figure, billiard ball 1 moving at a speed of 2.1 m/s undergoes a glancing…

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Q: 7. In the arrangement of the figure, billiard ball 1 moving at a speed of 1.95 m/s undergoes a…

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