A fireworks rocket is launched vertically (+y-direction) into the night sky with

Question

A fireworks rocket is launched vertically (+y-direction) into the night sky with an initial speed of 44.8 m/s. The rocket coasts after being launched, then explodes and breaks into two pieces of equal mass 2.57 s later. (a) If each piece follows a trajectory that is initially at 46.0

Explanation / Answer

the vel of rocket after 2.57secs = U-gt => 19.614m/s and since their inital vel in horizontal direction is 46o, tan(46) = Vhorizontal/Vvertical => Vhori = 20.31m/s so the resultant veleocity is 28.235m/s Cm goes in the same direction as if the collision never occured

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