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A firework of mass 0.25 kg is launched at an angle of 75 degrees above the...

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Physics

A firework of mass 0.25 kg is launched at an angle of 75 degreesabove the horizontal, pointing due west. The initial speed of thefirework is 69 m/s. At the top of its trajectory, it explodes intotwo pieces of equal mass. One of the pieces takes 2.1 s to fall tothe ground, and lands on the ground a distance of 53 m due westfrom the launch position. Neglect air resistance. (a) Find thevelocity of both pieces just after the explosion. (b) Where doesthe other piece land? (c) Sketch a picture of the resulting motionand convince yourself that it is plausible.

Answer & Explanation Solved by verified expert
3.9 Ratings (387 Votes)
Vo initial velocity of launch 69 ms angle of launch 75 degR normal horizontal range of the firework when no explosiontake placeR V2o Sin2gR 692 Sin15098 243 mconsider the motion of one piece after explosion in verticaldirectionY vertical height    See Answer
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