The velocity of the second fragment is 60 m/s.
What is velocity?
Velocity can be defined as the rate of change of displacement of a body.
To calculate the velocity of the second fragment we use the formula below.
Formula:
- MV = mv................ Equation 1
Where:
- M = mass of the first fragment
- V = Velocity of the first fragment
- m = mass of the second fragment
- v = velocity of the second fragment
Make v the subject of the equation
- v = MV/m............. Equation 2
From the question,
Given:
- M = 30 kg
- V = 40 m/s west.
- m = 20 kg
Substitute these values into equation 2
- v = (30×40)/20
- v = 60 m/s.
Hence, the velocity of the second fragment is 60 m/s.
Learn more about velocity here: https://brainly.com/question/80295?source=archive
