FoxGirl1971
19.09.2021 •
Physics
a cyclist goes 25m/s on her first journey and it takes her 50 seconds to finish that part. on her second journey she covers 900m distance. her average speed is 18m/s. calculate her speed in the second part of the journey. SOMEONE PLEASE HELP AND EXPLAIN. EXPLAIN IT TO ME
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Ответ:
Conservation of momentum, general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant