A 2110-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+Bt^2, 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 1.70 m/s^2 and 2.00 s later an upward velocity of 2.50m/s .
Part A Determine A
Part B Determine
Part C At 3.50 s after fuel ignition, what is the acceleration of the rocket?
Part D At 3.50 s after fuel ignition,what thrust force does the burning fuel exert on it, assume no air resistance? Express the thrust in newtons
Part E What thrust force does the burning fuel exert on it, assume no air resistance? Express the thrust as a multiple of the rocket's weight.
Part F What was the initial thrust due to the fuel?