Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass 3M moves to the right with a speed of 55.1 m/s. What is the speed of the block of mass M?

Q: A box with mass m and speed =1.2 m/s, moving on a frictionless surface approaches two other boxes…

A: Given : Three system are in collision m1= m  m2 = 2m  m3 = 3m V1= Vo = 1.2 m/s V2 =0  V3= 0

Q: Two objects of mass 2m and m moving with velocities v1 and v2 collide at that point and stick…

A: Given The mass of object moving in x direction is m1=2m. The mass of object moving in y direction…

Q: A Plane flies parallel to the ground at a height of 3 km at 340 m/s over a mysterious island when an…

A: Before explosion total mass of plane m                            m= mass of tail Section m1 + mass…

Q: The drawing shows a top view of a frictionless horizontal surface, where there are two springs with…

A: Spring constant of the spring =k= 250 N/m

Q: A point mass of m =1 (kg) is connected to a block of M = 4m with a thin rope of length L = 6 (m) as…

A: Given that: mass                 m = 1 Kg Length or rope L = 6 m                          g = 10…

Q: A 58.5-kg astronaut is floating through space at a speed of 0.15 m/s while carrying a tool with mass…

A: Using momentum conservation  Initial momentum =Final momentum  (M+m)V=M×0+mv

Q: An unstable atomic nucleus of mass 1.58 x 1026 kg initially at rest disintegrates into three…

A: (given) Mass of unstable nucleus (M) =1.58 ×10-26 kg  Mass of particles is m1=5.14×10-27…

Q: Bob is on a sled of mass 3500 kg moving at 32 m/s. Pong is on a sled of mass 4100 kg moving at 10…

A: Given: The mass of the bob with a sled is 3500 kg. The initial velocity of the bob with a sled is 32…

Q: Block 1, with mass m1 and speed 5.2 m/s, slides along an x axis on a frictionless floor and then…

A: a)The expression from conservation of momentum,

Q: A 500.0 kg module is attached to a 400.0 kg shuttle craft, which moves at 1000 m/s relative to the…

A:

Q: A block of mass 5M is attached to a very light horizontal spring of force constant k= 100 N and is…

A: In this problem we will use conservation of momentum  Initial momentum =Final momentum

Q: A block of mass m= 34kg and speed v is behind a block of mass M =81 kg and speed of 0.5 m/s. The…

A: Before collision:   Mass of the first block, Mass of the second block,

Q: An unstable atomic nucleus of mass 1.50 x 1026 kg initially at rest disintegrates into three…

A: When the external forces acting on a system of particles is zero, then the linear momentum of the…

Q: A bullet of mass 20 g, traveling at 350 m/s , strikes a steel plate at an angle of 30° with the…

A: calculate the impulse along the parallel to the plane of plate Iparallel= m(Vfcosθ – Vicosθ) =…

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

A:

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

A:

Q: Block "P" of mass Mp slides along an x-axis on a frictionless floor with initial speed Vp, i = 4…

A:

Q: An object with mass m1 = 2m which moves on horizontal surface with constant speed v, collides with…

A: first mass = 2m second mass =  3m initial speed of first mass = v using conservation of momentum 2mv…

Q: An open railroad car of mass 15,000 kg is coasting with a speed of 25 m/s. It rains really hard for…

A: Given data: The mass of the open railroad car is M=15000 kg. The initial speed of the railroad car…

Q: A ball of mass mm and another ball of mass 3m are placed inside a smooth metal tube with a massless…

A:

Q: A 2.0-g particle moving at 5.8 m/s makes a perfectly elastic head-on collision with a resting 1.0-g…

A: Since there is no external force so linear momentum is conserved . Here M1, M2 are the masses of…

Q: Two objects of mass 2m and m moving with velocities v1 and v2 collide at that point and stick…

A:

Q: A railroad car of mass M moving at a speed v1 collides and couples with two coupled railroad cars,…

A:

Q: with the same collision, after the pendulum swings back to its original position (e-0), it is struck…

A: By conservation of momentam mv=(m+M)v1 where m=mass of bullet             M=mass of block

Q: A block of mass m = 3.5 kg, moving on a frictionless surface with a speed Vmo = 6.2 m/s makes a…

A:

Q: Tyrrell throws his 0.20 kg football in the living room and knocks over his mother’s 0.80 kg antique…

A:

Q: In the figure, block 2 (mass 1.70 kg) is at rest on a frictionless surface and touching the end of…

A: Given information: Here, m1 and m2 are the mass of the block 1 and block 2 respectively and v1 and…

Q: A 2.0-g particle moving at 5.8 m/s makes a perfectly elastic head-on collision with a resting 1.0-g…

A: If a body of mass m1 moving with velocity u1 collides with a stationary body of mass m2 then the…

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

A:

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: A particle A moving 2 m/s in the +x direction collides with a particle B moving in 2.5 m/s in the -y…

A: Given:mass of particle A, mA = mmass of particle B, m = 2minitial velocity of A, uA = 2i^ m/sinitial…

Q: A 0.0052kg bullet moving at 672m/s strikes a 0.7kg wooden block at rest on a frictionless surface.…

A:

Q: A railroad car of mass 3.50 x 104 kg moving at 2:70 m/s collides and couples with two coupled…

A: Given Data  Mass of each railroad car is m=3.50×104 kg Speed of the first car is v1=2.70 m/s Speed…

Q: A railroad car of a mass m is moving at speed v when it collides with a second railroad car of mass…

A:

Q: A block of mass mm = 16 kgkg has a speed VV and is behind a block of mass MM = 65 kgkg that has a…

A: Using the conservation of momentum, m1v1i+m1v1i=m1+m2vf16 kgv1i+65 kg0.5 m.s-1=16 kg+65 kg0.9…

Q: A block of mass 5M is attached to a very light horizontal spring of force constant k= 100 N and is…

A:

Q: Block "P" of mass Mp slides along an x-axis on a frictionless floor with initial speed Vp, i = 4…

A: Collision of two objects with kinetic energy conserved.

Q: A railroad car of mass 2.55 × 10ª kg moving at 2.85 m/s collides and couples with two coupled…

A: Given: The mass of each railroad car is  2.55x104 kg. The speed of the first railroad call is 2.85…

Q: A railroad car of mass 3.20 x 10* kg moving at 3.35 m/s collides and couples with two coupled…

A: Given, mass of the car, m1 = 3.20×104 kg speed of the car, v = 3.35 ms speed of the two rail car, v…

Q: Vp, i = 4 m/s. Then it undergoes a one-dimensional collision with stationary block "S" of mass Ms =…

A:

Q: An unstable atomic nucleus of mass 1.50 x 10-26 kg initially at rest disintegrates into three…

A:

Q: A mass m1 = 10.5 kg, with initial velocity V0 = 12.5 m/s, strikes a mass-spring system m2 = 7.25 kg,…

A:

Q: Block 1, with mass m1 and speed 3.8 m/s, slides along an x axis on a frictionless floor and then…

A: The masses are m1 and 0.34m1 The initial speed of m1 is u1=3.8 m/s The initial speed of m2 is u2=0…

Q: A railroad car of mass 2.45 x 10“ kg moving at 2.65 m/s collides and couples with two coupled…

A:

Q: A block of mass 5M is attached to a very light horizontal spring of force constant k= 100 N and is…

A: Solution: Given that Block mass = 5M stone mass = M block initial velocity vi = 33 m/s block final…