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: Puck A (mass of 250 g) is initially moving to the right at 5.5 m/s, when it collides with puck B…

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Q: An object of mass m moves to the right with a speed of v. it collides head on with an object of mass…

A: From the question, it is given that- Mass of 1st object: m1 = m Mass of 2nd object: m2 = 3m Initial…

Q: Two cars collide in a head-on collision.  Car 1 has a mass of 1875 kg and was traveling at a speed…

A: Let m1 and m2 denote the masses of car 1 and 2, u1 and u2 denote the speed of car 1 and 2 just…

Q: Two cars collide at an icy intersection and stick together afterward. The first car has a mass of…

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

A: The momentum is conserved. that is total linear momentum before collision is equal to the total…

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

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Q: A 67.0 kg person is riding a bike on a level horizontal street. Together, the bike and person have a…

A: Mass of the person (m1) =67 kgCombined mass  of  person  and  bike                     is 74.6 kg .…

Q: A mass m1= 3kg slides down slippery ramp, reaching a speed v=9 m/s at the bottom.After reaching the…

A: Given data:m1 = 3 kgm2 = 4 kgInitial speed of mass m1 be u1 = 9 m/sInitial speed of mass m2 be u2 =…

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: Mass A is initially moving with a velocity of 24 m/s in the +x-direction. Mass B is twice as massive…

A: Mass A is initially moving with a velocity of 24 m/s in the +x-direction. Mass B is twice as massive…

Q: (a) If my $15.0fkol and m2- 625.0[kg], what is the velocity of car 2 immediately after the…

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Q: Two objects are on a collision course. Object #1 has a mass of 10.6 kg and an initial velocity of…

A: See below

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

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Q: A small, 250 g cart is moving at 1.60 m/s on a frictionless track when it collides with a larger,…

A: Given data : The mass of the small cart (m1​)=250g The initial velocity of the small cart…

Q: A boy sleds down a hill and onto a frictionless icecovered lake at 10.0 m/s. In the middle of the…

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Q: A railroad car of mass 2.85 x 10^4 kg moving at 2.60 m/s collides and couple with two coupled…

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Q: While a giant man stands on the top of a building, an elephant slams into him at a speed of 360 m/s.…

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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: Ethan, whose mass is 80 kg, stands at one end of a very long, stationary wheeled cart that has a…

A: According conservation of momentum, initial momentum of the system is equal to the final momentum of…

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: Two objects are on a collision course. Object #1 has a mass of 13.4 kg and an initial velocity of…

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Q: A railroad car of mass 2.85 x 10^4 kg moving at 2.60 m/s collides and couples and with two coupled…

A: mass of railroad car, m1 = 2.85 x 104 kg Mass of two coupled railroad cars, m2 = 2m1 Initial speed…

Q: Two remote control cars with masses of 1.15 kilograms and 1.98 kilograms travel toward each other at…

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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 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: A railroad car of mass 2.60 x 10* kg moving at 2.90 m/s collides and couples with two coupled…

A: m=mass of railroad=26000 Kg M=mass of coupled railroad = 2*26000 = 52000 Kg u1=initial velocity of m…

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

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Q: Two masses, m, and m, move on the xy plane towards each other as shown in the figure. The first mass…

A: Answer: 9.29 m/s

Q: A 2.51 kg ball of clay is traveling straight north with a speed of 24.0 m/s, collides with a 3.55 kg…

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