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Sagot :
The final momentum will be 159.2 kg m/sec. The change in the momentum is the difference of the final and the initial momentum.
What is momentum?
The momentum is defined as the product of mass and the velocity of the body. It is denoted by the letter P. It occurs due to the applied force. Its unit is Kg m/s.
The given data in the problem is;
The mass of rock is,12 kg
The velocity is,v= 5.1 m/s
The momentum is P
The momentum is found as;
[tex]\rm P_i = mv \\\\ \rm P_i = 12 \times 5.1 \\\\ P_i=61.2 \ kg m/sec[/tex]
From Newtons second law, impulse is equal to the change in the momentum.
[tex]\rm I =\triangle P \\\\ \rm I =P_f-P_i \\\\ \rm 98 = P_f-61.2 \\\\ P_f =159.2 \ Kg m/sec[/tex]
Hence, the final momentum will be 159.2 kg m/sec
To learn more about the momentum, refer to the link;
https://brainly.com/question/4956182
#SPJ2
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