Asked by Anonymous
A ball is dropped from a high building. Using the approximate value of g = 10 m/s2, find the change in velocity between the fourth and seventh second of its flight
Answers
Answered by
bobpursley
find v(7) : v(7)=10*7=70
find v(4) : v(4)=10*4=40
calculate the change.
find v(4) : v(4)=10*4=40
calculate the change.
Answered by
Mina
30 is the change
Answered by
Anonymous
30m/s
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