A 5,000 kg traveling at a velocity of 100 m/s and hits another train . The two trains stick together, and the new velocity is 50 m/s . What is the mass of second train
A 5,000 kg train is traveling at a velocity of 100 m/s and hits another train. The two trains stick together, and the new velocity is 50 m/s. [ 5000 kg is the mass of the second train.
Solution:
(5000 kg)?(100 m/s) = 500,000 kg?m/s.
After the collision, where M is the mass of the second train, the momentum is ...
((5000+M) kg)?(50 m/s) = 500,000 kg?m/s
Dividing by 50 m/s and subtracting 5000 kg, we have ...
(5000 +M) kg = 10,000 kg
M kg = 5000 kg
The mass of the second train is 5000 kg.
]
Question
Asked 5/26/2022 1:41:12 PM
Updated 207 days ago|7/15/2024 7:40:52 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Rating
There are no new answers.