By how much does the momentum of a body of mass 5kg change when its sp

1.	By how much does the momentum of a body of mass 5kg change when its speed decreases from 20m/s to 0.20m/s
Answer» EXPLANATION: we KNOW that change in momentum = final momentum – initial momentum so, change in momentum = mv- mu or = 5×0.2 – 5×20 or = 1 – 100 THUS, Δp = – 99 kg.m/s2

By how much does the momentum of a body of mass 5kg change when its speed decreases from 20m/s to 0.20m/s

Answer»

EXPLANATION:

we KNOW that

change in momentum = final momentum – initial momentum

so,

change in momentum = mv- mu

= 5×0.2 – 5×20

= 1 – 100

THUS,

Δp = – 99 kg.m/s2

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By how much does the momentum of a body of mass 5kg change when its speed decreases from 20m/s to 0.20m/s

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