The engine of a model rocket accelerates the rocket verticallyupward for 2.0 s a

Question

The engine of a model rocket accelerates the rocket verticallyupward for 2.0 s as follows: At t = 0, the rocket's speedis zero; at t = 1.0 s, its speed is 6.0 m/s; and at t = 2.0 s, its speed is17 m/s. Plot a velocity vs. time graphfor this motion, and use the graph to determine each of thefollowing. (a) the rocket's average acceleration duringthe 2.0 s interval
m/s2
(b) the instantaneous acceleration of the rocket at t =1.5 s
m/s2 (a) the rocket's average acceleration duringthe 2.0 s interval
m/s2
(b) the instantaneous acceleration of the rocket at t =1.5 s
m/s2

Explanation / Answer

(a)    the average acceleration will be    ax = (17 - 0) / 2        = ....... m /s2 (b)    the instantaneous acceleration will be    ax = (17 - 6) / 0.5        = ....... m /s2    ax = (17 - 6) / 0.5        = ....... m /s2

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