On the planet Gizmo, the inhabitants travel by high speed trains that run on air tracks. A train car with a mass of 8700 kg is traveling at 11.0 m/s when it strikes a second car moving in the same direction at 2.2 m/s. The two stick together and move off with a speed of 4.00 m/s. What is the mass of the second car? Explain your reasoning. How much kinetic energy was lost in the collision?

Q: A 0.45-kg soccer ball is moving to the right with a speed of 5.5 m/sec. Ken hits the ball with his…

A: Given Let us consider right side movement as positive and left side movement as negative Mass of the…

Q: Johnny, who has a mass of 70 kg, is having fun on a floating dock in the middle of a pond. The dock…

A: Given: Mass of Johny mJ=70 kg Mass of dock mD=200 kg Acceleration of Johny aj=2 m/s2

Q: SerCP10 6.P.003. [3490232) A pitcher claims he can throw a 0.144-kg baseball with as much momentum…

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Q: Two rocks collide in outer space. Before the collision, one rock had mass 18 kg and velocity m/s.…

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Q: Mary slides down a snow-covered hill on a large piece of cardboard and then slides across a frozen…

A: Speed of the two of them slide across the ice together on the cardboard is 3.374m/s.

Q: A curling player with a mass of 50kg, slides at 2m/s due East on a frictionless ice rink while…

A: (a) Given: The mass of the curling player is 50 kg. The speed of the curling player is 2 ms. The…

Q: Two asteroids of equal mass (500 kg) in the asteroid belt between Mars and Jupiter collide with a…

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Q: Sally who is driving a 2200 kg car and rams into John who was stopped in his 1500 kg car. Sally was…

A: Given: m1=2200 kgm2=1500 kgu1=36 km/h = 10 m/su2=0 m/sv1=18 km/h= 5 m/sF=5*104 N

Q: While playing soccer, Ronaldinho (45 kg) and his opponent Messih (60 kg) collide with one another…

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Q: A 5 kg dog sits in a stationary, 27 kg sled on a frictionless, icy lake. The dog jumps out of the…

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Q: Object 1 with a mass of 4.90 kg, moving right at a speed of 8.60 m/s along a frictionless surface,…

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Q: A pitcher claims he can throw a 0.144-kg baseball with as much momentum as a 2.72-g bullet moving…

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Q: A soft rubber pellet is fired at a target sitting motionless on a frictionless surface. If the…

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Q: Casey is driving a 1600 kg car toward the east. She goes through an intersection at a speed of 16…

A: given that, Casey is driving a 1600 kg car toward the east.  speed of 16 m/s (approximately 35 mph),…

Q: Car 1 has a mass of 1.50 × 10° kg and is moving at a constant speed of 4.00 m/s. It strikes Car 2,…

A: Given: Mass of C1=1.50×103Mass of C2=1.20×103Mass of C3=1.80×103Velocity V1=4.0 m/s

Q: A spaceship of mass 2.10x106 kg is cruising at a speed of 5.20x106 m/s when the antimatter reactor…

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Q: A railroad car of mass 3.15 x 10* kg moving at 2.50 m/s collides and couples with two coupled…

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Q: A pitcher claims he can throw a 0.144-kg baseball with as much momentum as a 2.54-g bullet moving…

A: Write the given values with suitable variables. m1=0.144 kgm2=2.54 g=2.54×10-3 kgu2=1.5×103 m/s…

Q: The Moon’s craters are remnants of meteorite collisions. Suppose a fairly large asteroid that has a…

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Q: Three children are standing together on a totally frictionless frozen pond. However, their combined…

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Q: A 2,950 kg truck jumps the median and clobbers a 660 kg station wagon in a head-on collision. You…

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Q: Q1: Two cars one with Mass (m1 = 10.0 kg) and 2nd car (m2 = 7.5 kg) collide and move off as shown.…

A: A collision is the interaction between two objects for a small time interval in which they impart…

Q: At the intersection of El Roble road and Paseo Universitario road, a 1000 kg car A traveling east on…

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Q: a red 755 g cart having a initial speed of 9.85 m/s hits a stationary blue 455-g cart on a physics…

A: Mass of red cart, mr = 0.755 kgMass of blue cart, mb = 0.455 kgInitial velocity of red cart, ur =…

Q: Two objects are on a collision course. Object #1 has a mass of 5 kg and an initial velocity of 5.6…

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Q: A 50.0-kg boy runs at a speed of 10.0 m/s and jumps onto a cart as shown in the figure. The cart is…

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Q: A 7500 kg train moving at 1.5 m/s collides with and couples with a 2500 kg carriage. What is the…

A: Given: Train mass, mt=7500 kg Train velocity, vti=1.5 m/s Carriage mass, mc=2500 kg

Q: The eight ball, which has a mass of m = 0.5 kg, is initially moving with a velocity v = 4.7i m/s. It…

A: Given:Mass of the eight ball, m = 0.5 kgInitial velocity of the eight ball, v = 4.7i m/sMass of the…

Q: A 350 kg motorboat is turned off as it approaches a dock and it coasts in toward the dock at .5 m/s.…

A: The momentum of the system remains constant in the absence of any external force.

Q: Godzilla is fighting Mothra in Tokyo. Godzilla climbs a tall building and, while standing on the top…

A: The conservation of momentum, the initial momentum of the Mothra and the Godzilla will be,

Q: A 50.0-kg boy runs at a speed of 8.5 m/s and jumps onto a cart as shown in the figure. The cart is…

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Q: A BB gun is fired at a cardboard box of mass m2 = 0.55 kg on a frictionless surface. The BB has a…

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Q: A bumper car with mass mị = stationary second bumper car with a mass of m2 = 100 kg is directly in…

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Q: You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own…

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Q: Asteroid 1 (m₁ = 100 kg) initially moves in the y-direction with momentum p₁i = 20,000 kg m/s and…

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Q: A railroad car of mass 2.85 x 10" kg moving at 3.40 m/s collides and couples with two coupled…

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Q: The following question concerns a collision in outer space, far enough from any planets so that the…

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Q: A 2500-kg car traveling at 20 m/s is chasing a second car of mass 3500 kg that is traveling at 7 m/s…

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Q: A child sleds down a hill and collides at 5.6 m/s into a stationary sled that is identical to his.…

A: The expression for the initial momentum is given by, pi→=(m+M)vf,c

Q: Three carts are moving on a frictionless horizontal track as shown in the figure.  The 4.00 kg cart…

A: (given) By conservation of linear momentum, m1= 4kg, v1=7 m/sm2=10 kg, v2=6 m/sm3=3kg  ,v3 =7mm3/s…

Q: A 92 kg boulder , moving at 5.0 m/s attempts to pass directly across the adit of a mine. Just as the…

A: As the objects stick together after the collision and travel, the collision is an inelastic one. In…

Q: A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force…

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