B2 A model rocket is shot straight up and explodes at the top of its trajectory into three pleces as viewed from atove and shown in the figure belw The mases of the three pces are m-130.0.ms20.0 g, and mc 30.0g. Immediately after the explosion, piete A traveling at 120 s, and piece traveling at 7.40 m/s in a drection 30 below the negstiveinshown whatwthe velocity of piece C?magnitudem/sdirectionbelow the positive ais A boy of mass 22.0 ko is siting on one side of a seesan while his older sster, whe has a mass of 32.0 ka. is siting en the other side. Each cht is 170 m bom the certer at the sos (Ame thethe positive direction is from the center towares the sister)(a) Where is the center of mass of the two children relative to the center of the seesaw (Indicate the direction with the sign of your answer)(b) The clder sister moves so that the center of mass of the two children is directly ebove the center of the seesaw. How far did she move and in which direction Did she move coser to arfurther from the center? (Indicate the direction with the sign of your answer.)m.

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A model rocket s shot straight up and explodes at the top of s traectory into three peces a vieed m aeve and hointhe r be The a fthe te a me20.0, nd m300 Immedately ater the explen, pece Atreveling at .2 nd pece ng the velocty ef piece C dredin bel the negtive n sho what magntude below the positivea drection

A model rocket s shot straight up and explodes at the top of s traectory into three peces a vieed m aeve and hointhe r be The a fthe te a me20.0, nd m300 Immedately ater the explen, pece Atreveling at .2 nd pece ng the velocty ef piece C dredin bel the negtive n sho what magntude below the positivea drection