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In this problem we will consider the collision of two cars initially moving at right angles. We assume that after the collision the cars stick together and travel off as a single unit.
Step 1: Draw two momentum diagrams for both carts immediately before and immediately after the collision, one describing the collision in the lab reference frame, and one describing the collision in the center of mass reference frame.
Why might two cars stick together after a collision? Answer : If two cars stick together after a collision, it’s an example of a perfectly inelastic collision. The cars remain together due to mechanical interlocking, deformation, or other forces that overcome their ability to rebound from each other.
In a perfectly inelastic collision, objects stick together after collision → treat the two objects as a single object after collision: p final = (m 1+m 2) v final • Most collisions are inelastic. • "Perfectly inelastic collisions" usually involve easily deformed objects e.g. wet clay. KJF §9.5
2 kwi 2019 · I Ch. 6–2 Holt Physics Solution Manual I 4. m = 0.50 kg F1 = 3.00 N to the right ∆t1 = 1.50 s vi,1 = 0 m/s F2 = 4.00 N to the left =−4.00 N ∆t2 = 3.00 s vi,2 = 9.0 m/s to the right a. vf,1 = ⎯ F1 ∆t1 m + mvi,1 vf,1 = 9.0 m/s = b. vf,2 =⎯ F2 ∆t2 m + mvi,2 vf,2 ==⎯ −7. 0 5.5 k 0 g k •m g /s ⎯=−15 m/s vf,2 = 15 m/s to the left −12.0 kg •m/s + 4.5 kg m/s 0.50 kg (−4 ...
In the next activity you will make qualitative observations using two carts of equal mass moving toward each other at the same speed. You will observe momentum changes for several types of interactions, including an elastic and inelastic col-lision and an explosion.
Two cars approach a 90o intersection. Neither driver is paying attention to what they are doing, and they collide. After the collision, the cars stick together, and skid to a stop in 14.8 meters at an angle as shown. The two cars have masses of 1300 kg and 1600 kg, as shown.
