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Calculate the following question-
Question- A 2900-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt2, where A and B are constants and time is measured from the instant the fuel is ignited. At the instant of ignition, the rocket has an upward acceleration of 1.30m/s2 and 2.00s later an upward velocity of 1.91m/s.
Part 1- At 3.80s after fuel ignition, what is the acceleration of the rocket?
I need experts help to determine the answer of the above question.
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