A railroad car of mass 3.05 ✕ 104 kg moving at 2.95 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision?  m/s (b) How much kinetic energy is lost in the collision?

Q: A railroad car of mass 2.5 x 104 kg is moving at a speed of 4.00 m/s.  It collides and couples with…

A: Given: The mass of railroad car is m=2.5×104 kg, The initial speed of a railroad car is u1=4 m/s,…

Q: Arailroad freight car of mass 2.84 × 10ª kg collides with a stationary caboose car. They couple…

A:

Q: A 100-kg particle moves with an initial velocity of (4.0i, - 6.0j) m/s. If its velocity changes to v…

A:

Q: Particle A and particle B are held together with a compressed spring between them. When they are…

A: let particle A be 1 and particle B be 2 given: m1=2m2 (mass of A is 2 times of mass of B) energy…

Q: Ball 1 of mass 3 kg with speed 4.7 m/s collides head-on with ball 2 of equal mass. What is the speed…

A:

Q: ders move on frictionless track.  If the cars all collide at the same time and couple together, find…

A: Given:- 3 gliders move on a frictionless track.  If the cars all collide at the same time and couple…

Q: On a horizontal frictionless surface, a small block with a mass 0.200kg has a collision with a block…

A: Mass of object 1 is  Mass of object 2 is After collision, velocity of object 1 is  in the direction…

Q: 19. On a very muddy American football field, a 95.0-kg linebacker tackles a 120.-kg halfback. Right…

A: Write the given values with the suitable variables. m1=95 kgm2=120 kgu1=8 m/su2=-4 m/s Here, m1, m2,…

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

A:

Q: In an intersection, a bus moving at (100i) m/s and a truck moving at (200j) m/s collided with each…

A:

Q: In the figure below, a box of mass M = 4.5 kg slides on a horizontal table without friction and…

A: Speed of the block M before collision is v = 6.0 m/s Mass of the block is M = 4.5 kg Kinetic energy…

Q: m1 = 10kg has a velocity ~v1 = 5°i collides with mass m2 = 20kg with a velocity ~v2 = -2°i. a) What…

A:

Q: A ball of clay with a mass of 0.950 k is initially traveling towards the floor with a speed of 0…

A:

Q: Solved Problem: Larry has a mass of 80 kg and runs across the front of the classroom with a speed of…

A:

Q: Particle A and particle B are held together with a compressed spring between them. When they are…

A: The energy stored in the compressed spring( potential energy), Ui=85 J When the spring is released,…

Q: A large, lit m80 (a type of firework) is dropped off of a bridge. When the m80 is 12.30 m below the…

A: Consider the following diagram,

Q: A wad of clay with a mass m is thrown at a wooden block of mass M that lies on the top of a…

A: Given that: mass of clay=m mass of the block = M  The height of the table = H   It is required to…

Q: A pitcher claims he can throw a 0.141-kg baseball with as much momentum as a 2.96-g bullet moving…

A: pball=pbulletmballvball=mbulletvbullet       vball=mbulletvbulletmball             =2.96 g10-3…

Q: An object of mass 7.21 kg is released from rest and drops 2.05 m to the floor .The collision is…

A: Mass of object  m = 7.21 kg        Height  H = 2.05 m

Q: ralroad car of mass 3.40 x 10 kg moving at 3.25 m/s collides and couples with two coupled railroad…

A: mass of railroad car = m1= m = 3.4 x 104 kg mass of two coupled car = m2= 2m = 6.8 x 104 kg

Q: A small block of mass M is released from rest at the top of the curved frictionless ramp shown in…

A:

Q: An arrow of mass 40.0 g and initial speed of 150 m/s is fired into a bullseye target stand with…

A: mass of arrow = 40 g Initial speed of arrow = 150 m/s mass of target stand = 0.105 kg Initial speed…

Q: A railroad car of mass 2.0  104 kg moving at 4.50 m/s collides and couples with two coupled railroad…

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

Q: A 1400 kg weather rocket accelerates upward at 10 m/s^2. It explodes 1.6 s after liftoff and breaks…

A:

Q: A ball with mass 3 kg is travelling at the speed of 2 m/s along a straight line at 90 degrees from…

A: u=Initial velocity of the ball=2 m/sm=Mass of the ball=3 kgv=Final velocity of the ballF=Average…

Q: A railroad car of mass 2.5 x 104 kg is moving at a speed of 4.00 m/s. It collides and couples with…

A:

Q: Car A and B is moving East with a velocity of 60kph and 40kph respectively. The mass of car A is…

A: From the momentum conservation, Here, m, u and v represent the mass of the car, the initial…

Q: A pellet gun fires ten 2.4 g pellets per second with a speed of 620 m/s. The pellets are stopped by…

A:

Q: A 2090 kg truck traveling north at 30 km/h turns east and accelerates to 61 km/h. (a) What is the…

A: Consider the mass of the truck be m, the initial velocity of the truck, that is in north direction,…

Q: Situation 4. A railroad car of mass 2.50x10^4 kg is moving with a speed of 4.00 m/s. It collides and…

A:

Q: A 2350 kg truck traveling north at 43 km/h turns east and accelerates to 61 km/h. (a) What is the…

A: It is given that the mass of the truck is, m=2350 kg, The initial velocity is,…

Q: Bullet of mass 105 grams, hits the stationary block of mass 15,190g (originally frictionless…

A:

Q: Two 465g blocks of wood are 2 m apart on a frictionless table. A 15g bullet is fired at 419 m/s…

A:

Q: Marble A was released at a certain height of the ramp and hit Marble B on the horizontal end of the…

A: Potential energy is the energy that is stored in an object due to its position relative to some zero…

Q: A 2.0-kg object moves to the right with a speed of 4.0 m/s. It collides in a perfectly elastic…

A: In a perfectly elastic collision Since kinetic energy remains conserved, So  Kinetic energy before…

Q: A 7,300-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are…

A: Mass of the truck ( M ) = 7300 kg. Mass of the car (  m ) = 1000 kg Speed of truck and car after…

Q: A railroad car of mass 2.55  104 kg is moving with a speed of 3.94 m/s. It collides and couples with…

A: (a)Use the law of conservation of momentum.The equation for the given situation is,

Q: A railroad car of mass M moving at a speed v_1 collides and couples with two coupled railroad cars,…

A:

Q: A 1960 kg truck traveling north at 30 km/h turns east and accelerates to 54 km/h. (a) What is the…

A: (a) Kinetic energy is given by the formula  The change in kinetic energy is then  We'll need to make…

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…