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Question

A loaded lorry of mass $$12000\ kg$$ moves with a velocity of $$12\ m/s$$. Its velocity becomes $$10\ m/s$$ after $$5\ s$$
What is the initial momentum and what is the final momentum?


Solution

initial momentum $$=mu$$
$$=12000 \times 12=144000\ kg\ m/s$$ 

Final momentum $$=mv$$
$$=12000 \times 10=120000\ kg\ m/s$$

Physics

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