a rocket is fired vertically upwards.it reaches a hight of 1000 m with velocity of 300m/sec. At this instant the rocket
explodes into 3 equal parts, & 1st part
continuous to move upwards with velocity of
450m/sec. the 2nd part has a seed of
240 m/sec moving in
the easterly direction.what is the velocity of 3rd part.
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