Answer:
-15 m/s
Explanation:
The computation of the velocity of the 4.0 kg fragment is shown below:
For this question, we use the correlation of the momentum along with horizontal x axis
Given that
Weight of stationary shell = 6 kg
Other two fragments each = 1.0 kg
Angle = 60
Speed = 60 m/s
Based on the above information, the velocity = v is



= -15 m/s
<u>The newton's 3rd law of motion states</u> for every action there is always an equal but opposite reaction.
<u>For example'</u>
<u> Whenever an interaction occurs between two objects, each object exerts the same force on each other , but in the opposite direction and for the same length of time.</u>
As he lifts the sack to his chest from the floor
<span>Before lava reaches the surface the molten material is called ___.
Answer: Magma
-I hope this helped. :)</span>