The altitude (ft) from the sea level and the corresponding time (sec) for a fictitious rocket were measured as follows:

Time	0	20	40	60	80	100	120	140	160	180	200
Altitude	370	9170	23835	45624	62065	87368	97355	103422	127892	149626	160095

Numerically compute the velocity from the table above using the central difference scheme.Use

f'(x) ~

(3 f(x) - 4 f(x - h) + f(x - 2 h)) / 2 h

at t=200 and use

f'(x) ~

(4 f(x+h) - f(x+2 h) - 3 f(x)) / 2 h

at t=0.

Make sure that you attach example runs showing the results from the computer.