Question

please help in this question... guys.... help



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Answer 1

Answer:

inital momentum=2000kgm/s

final momentum=4000kgm/s

force=1000N

Answer 2

Answer:

Initial Momentum=mu

                            =200×10

                            =2000 kg m/s

Final Momentum=mv

                           =200×20

                           =4000 kg m/s

∴Force=dp/dt

           =4000-2000/2

           =2000/2

           =1000 N

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