Question

# If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters *t* seconds later is

given by *y* = 56*t* − 1.86*t*^{2}

(a) Find the average speed over the given time intervals.

(i) [1, 2]

m/s

(ii) [1, 1.5]

m/s

(iii) [1, 1.1]

m/s

(iv) [1, 1.01]

m/s

(v) [1, 1.001]

m/s

(b) Estimate the speed when *t* = 1.

m/s

use table to answer

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