Boxcar 1 of mass m1 = 4 × 103 kg is moving down the railroad track with speed v1i = 4 m/s. It collides and couples to boxcar 2, which is initially at rest. Together they move down the track at vf = 2.8 m/s.
1) What is the momentum of boxcar 1 before colliding with boxcar 2?
p 1i = 16000 kgm/s
2) What is the mass of boxcar 2?
m 2 =
Boxcar 1 of mass m1 = 4 × 103 kg is moving down the railroad track...
Block 1, of mass m1 = 1.10 kg , moves along a frictionless air track with speed v1 = 29.0 m/s . It collides with block 2, of mass m2 = 45.0 kg , which was initially at rest. The blocks stick together after the collision. (Figure 1) Find the magnitude pi of the total initial momentum of the two-block system. Find vf, the magnitude of the final velocity of the two-block system. What is the change ΔK=Kfinal−Kinitial in the...
Block 1, of mass m1 = 2.30 kg, moves along a frictionless air track with speed v1 = 31.0 m/s. It collides with block 2, of mass m2 = 13.0 kg, which was initially at rest. The blocks stick together after the collision. A) Find the magnitude pi of the total initial momentum of the two-block system. B) Find vf, the magnitude of the final velocity of the two-block system C)What is the change ΔK=Kfinal−Kinitial in the two-block system's kinetic...
Block 1, of mass m1 = 3.50 kg , moves along a frictionless air track with speed v1 = 11.0 m/s . It collides with block 2, of mass m2 = 43.0 kg , which was initially at rest. The blocks stick together after the collision. What is the change ΔK=Kfinal−Kinitial in the two-block system's kinetic energy due to the collision?
Block 1, of mass m1 = 8.90 kg , moves along a frictionless air track with speed v1 = 31.0 m/s . It collides with block 2, of mass m2 = 15.0 kg , which was initially at rest. The blocks stick together after the collision. (Figure 1) What is the change ΔK=Kfinal−Kinitial in the two-block system's kinetic energy due to the collision?
Block 1, of mass m1 = 9.10 kg , moves along a frictionless air track with speed v1 = 27.0 m/s . It collides with block 2, of mass m2 = 13.0 kg , which was initially at rest. The blocks stick together after the collision. What is the change ΔK=Kfinal−Kinitial in the two-block system's kinetic energy due to the collision? Express your answer numerically in joules. Before collision: m2 After collision:
Required information In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.20 m/s and collides with an initially stationary, fully loaded boxcar of mass 5.70m. The two cars couple together on collision. What is the speed of the two cars after the collision? m/s
A block of mass m1 = 1.10 kg moving at v1 = 1.20 m/s undergoes a completely inelastic collision with a stationary block of mass m2 = 0.900 kg . The blocks then move, stuck together, at speed v2. After a short time, the two-block system collides inelastically with a third block, of mass m3 = 2.40 kg , which is initially at rest. The three blocks then move, stuck together, with speed v3. Assume that the blocks slide without...
A block of mass m1 = 1.10 kg moving at v1 = 1.20 m/s undergoes a completely inelastic collision with a stationary block of mass m2 = 0.900 kg . The blocks then move, stuck together, at speed v2. After a short time, the two-block system collides inelastically with a third block, of mass m3 = 2.40 kg , which is initially at rest. The three blocks then move, stuck together, with speed v3. Assume that the blocks slide without...
2. A railroad boxcar rolls on a track at 3.10 m/s toward two identical coupled boxcars, which are rolling in the same direction as the first, but a speed of 1.60 m/s. The first reaches the second two and all couples together. The mass of each is 4.65 x 104kg. (a) Present the physical principle in mathematical form and use it to determine the speed of the three coupled cars after the first couples with the other two. (b) Determine...
A freight car of mass 120,000 kg rolling down the track at 3 m / s collides with an identical freight car that was initially at rest. The two cars couple together and move off together. Calculate the speed of the combination of two cars.