In this lab, you will use a dynamics track to generate collisions between two carts. If momentum is conserved, what variable cha
2 answers:
In collision-related situations, momentum remains constant.
Thus, we can deduce:
To resolve these problems we also need another equation concerning the restitution coefficient:
With these two equations, we can calculate the velocities after a collision.
Here, the contact force brings about changes in velocity during their interaction.
This represents the impulse that occurs when the two objects are briefly in contact during the collision, which modifies their velocities.
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Answer:
Momentum is expressed as p = 7.2 g-m/s
Explanation:
It is given that,
The momentum of the object is
We need to represent momentum in alternative equivalent units. There are various solutions to this issue. For instance, mass units can be represented in grams, milligrams, etc., and length can be in meters, millimeters, etc.
Since, 1 kg = 1000 grams
Thus,
Therefore, the momentum of the object is 7.2 g-m/s. This is the solution needed.
1) 9.18 s
During the initial phase, the rocket accelerates at
over a time interval of
The final velocity after this period is found using the SUVAT formula:
with initial velocity u = 0. Substituting a1 and t1 gives:
Afterward, the rocket decelerates uniformly at
until it stops, meaning the final velocity is
Again using the SUVAT formula,
and knowing , solve for t2, the time until the rocket halts:
2) 299.9 m
Calculate distances covered in both phases.
Distance in the first phase:
Substituting values from part 1,
Distance in the deceleration phase:
Substituting known values,
Total distance traveled is
d = 82.7 m + 217.2 m = 299.9 m