That's true. The mass of your body is like the money
in your pocket. It doesn't change, no matter where you
take it.
Answer
correct answer is 3.10
Explanation:
in this question we have to multiply two numbers 1.003 and 3.09.
1.003 has 4 significant digits and 3.09 has 3 significant digits so answer must have 3 significant digits.

Hope it will help you
momm=massxvelocity
momm=1200x2.5=120x25=600x5=3000kgm/s
What models are you talking about