Question
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
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.
Mina
30 is the change
Anonymous
30m/s