Question

If an object is dropped from a height, its downward speed theoretically increases
linearly over time because the object is subject to the steady pull of gravity. Here
are observational data on the speed of a ball dropped from a certain height at time
x = 0:
Time (seconds) X 0 0.2 0.4 0.6 0.8
Speed (m/sec) Y 0 1.92 3.58 6.01 7.88

Answer 1

Sorry, don't know

Answer 2

Ok thank you!

Answer 3

it is simple, we have to compute this value:
\[\Large r = 1.92 - \left( { - 0.992 + 9.925 \cdot 0.2} \right) = ...?\]

Answer 4

ok one second plz

Answer 5

oops.. I have made a typo, here is the right formula:
\[\Large r = 1.92 - \left( { - 0.092 + 9.925 \cdot 0.2} \right) = ...?\]

Answer 6

i got 0.027

Answer 7

that's right!! :)