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A rocket is launched a t an angle of 53.0 degrees to the horizontal at 360 km/h and moves along a straight line with a total constant acceleration of 30.0 m/s^2 for 3.00 s. At the end of the third second the rocket's engine turns off and it proceeds to move in projectile motion.
a) determine the rocket's displacement and velocity (in terms of the units vectors i and j) at 3.00 s
b) obtain the maximum height reached by the rocket.
c) find the flight time when the rocket is in projectile motion
d) solve for the total ground distance d.
A stone is thrown directly upward at 15.0 from ground level and feels no appreciable air resistance. make Use of the work-energy theorem to find how high it will be when its speed has been reduced to half of its initial value.
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