Answer:
The original speed of the mess kit is 5.65 m/s.
Explanation:
Given that,
Mass of kit =7.0 kg
Mass of first = 3.5 kg
Speed= 5.5 m/s
Speed of other particle part = 7.5 m/s
Angle = 30°
We need to calculate the momentum of first part
Using formula of momentum

Put the value into the formula


We need to calculate the momentum of second part
Using formula of momentum



We need to calculate the total momentum





We need to calculate the original speed of the mess kit
Using formula of momentum


Put the value into the formula


Hence, The original speed of the mess kit is 5.65 m/s.